First, paste the data in the ‘Graph Data’ area. After that customize graph settings including its dimensions, axis titles, line specific settings, back color and layout. Click on the ‘Creat Graph’ button. When the graph is ready, you can print it out, email it to someone or bookmark it for further reference.

Features:

• Create graphs,bar graphs, line graphs, area graphs and pie charts online.
• Customize the graph settings and style to your liking.
• Print, email or bookmark graphs.
• Direct link to the graph is also provided.
• Similar tools: ChartPart, HohliCharts, ChartTool and Charts.

Check out ChartGo @ www.chartgo.com (by Srikanth AD from Techonaut )

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• PieColor: Online Pie Chart Maker
• WidGenie: Easy Tools for Presenting Raw Data Visually
• VisualEconomics: Complex Economic Data Sets on Easy-To-Understand Charts
• ManyEyes: Visualize Statistics & Interesting Facts
• HohliCharts: Create Bar Graphs, Pie Charts and Venn Diagrams.

Since I was pretty good at maths and physics, I tried out certain equations to check the accuracy of the tool. I have to say that I wasn’t disappointed. It comes up with fairly accurate graphs.

You can also drag points on the graph or locate specific coordinates. You could zoom in too if you need to take a better look. It’s certainly a useful tool for school and college students.

Check out Graphing Calculator @ www.e-tutor.com/et2/graphing (by Abhijeet from Jeet Blog)

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• xThink Calc: Online Calculator for your Drawing Pad
• Web2.0cal: Web2.0 Styled Cool Online Calculator
• Kanakku: Online Spreadsheet Calculator
• HohliCharts: Create Bar Graphs, Pie Charts and Venn Diagrams.
• Encalc: Free Online Scientific Calculator

To create a chart, first select a chart type and then enter the data into provided fields. The data starts appearing on the chart as you type it in. Moreover, you can easily edit the input numbers along the process and see the chart automatically regenerate.

Once chart is ready you can share it by forwarding a URL or embedding on your site or personal web page.

Features:

• Generate charts online.
• Create charts in different types – pie, 3D pie, line, grouped bar and more.
• Customize chart size.
• Embed chart on your webpage or share it by sending its URL.
• Similar tools: HohliCharts, ChartTool and Charts.

Check out ChartPart @ www.chartpart.com

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• WidGenie: Easy Tools for Presenting Raw Data Visually
• PieColor: Online Pie Chart Maker
• ManyEyes: Visualize Statistics & Interesting Facts
• HohliCharts: Create Bar Graphs, Pie Charts and Venn Diagrams.
• Graphsy: Create Graphs & Shapes Online

After you have uploaded your data, just use the drag and drop feature to create charts and graphs, and save them as widgets. These widgets can be customized using different colors, size, headings… etc. and also shared across various blogging platforms and social networks through a simple embed code. You can also track how many views your widget gets.

Main Features:

• Web service for presenting data visually in form of a widget.
• No installation or download required.
• Upload data from your local drive or through Google Docs.
• Embed widgets on the web or email a permanent link to people.
• Track number of views and unique visitors to your widgets.

Check out WidGenie @ www.widgenie.com

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• ChartPart: Create Charts Online
• ChartAll : Online Chart Creator
• PieColor: Online Pie Chart Maker
• ManyEyes: Visualize Statistics & Interesting Facts
• HohliCharts: Create Bar Graphs, Pie Charts and Venn Diagrams.

There is a search feature using which you can search for a particular Wikipedia entry and view how popular it was in the last 30, 60 or 90 days. Additionally, you can compare articles side by side and see results on a graph chart.

Features:

• View most popular Wikipedia articles for the last 30 days.
• Compare several articles side by side on a graph chart.
• View Trending articles with the highest spike in pageviews.
• Embed charts onto your webpage or blog.
• Search and see how many times articles were viewed in the last 30, 60, 90 days.
• Free. All the data is aggregated from Wikipedia’s public servers.
• Similar website: Wikirage.

Check out Wikirank @ www.wikirank.com

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• Wikirage: Displays Most Edited Wikipedia Articles
• Wikiwix: The Ultimate Wikipedia Search Engine
• Wikipedia-Roll: Search & Browse Wikipedia Articles Visually
• Wikify.appointment.at: Enrich Your Text with Links To Wikipedia
• WikiAlarm: Track Wikipedia Edits & Get Email Alets

There are a lot of chart types supported like bar charts, pie charts, line charts, bubble charts and radar plots. The charts can be downloaded as image formats like PNG and JPEG and other formats like PDF and CSV.

Features

• Free online chart generation tool.
• Various chart types like pie charts, line charts and bubble charts supported.
• Download charts in various formats like PNG, JPEG, PDF and CSV.
• Easy email and share the graphs.
• See more chart generation tools in MakeUseOf’s charts section.

Check out ChartTool @ www.onlinecharttool.com ( Contributed by Abhijeet from Jeet Blog )

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• WidGenie: Easy Tools for Presenting Raw Data Visually
• PieColor: Online Pie Chart Maker
• HohliCharts: Create Bar Graphs, Pie Charts and Venn Diagrams.
• Graphsy: Create Graphs & Shapes Online
• Charts: Track and Chart any Data from your iPhone

Apart from the ability to create, print and publish your flowcharts online, it also allows you to collaborate with team members on the documents. Further, you can share your flow charts as a web page, PDF, or image. You can access your flowcharts from any computer by signing in at Lucidcharts. There are many more features and once you start using it I am sure you’ll find this flowcharting tool very handy.

Check out LucidChart @ www.lucidchart.com (Contributed by Abhijeet from Jeet Blog)

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• SlickPlan: Create Beautiful Visual Sitemaps Online
• CrappyGraphs: Draw Quick Graphs Online
• ZohoShow
• Zoho : Feature-rich Web-based Office Software
• Wikirank: View Hot Topics on Wikipedia

You can optionally add text notes, select and drag particular items on the diagram around, draw straight lines and apply different brush colors. And when the graph/diagram is finally ready share it by forwarding the URL via email.

Features:

• Quickly draw graphs online and share them with others.
• Create as many graphs and diagrams as you like.
• You can create simple line graphs and 2 or 3 circle Venn diagrams.
• Add text, customize graph color, add additional lines etc.
• Similar websites: HohliCharts, ChartAll, ChartGizmo, PieColor and Charts (for iPhone).

Check out CrappyGraphs @ www.crappygraphs.com (via technospot.net)

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• WorldClock: Displays Interesting Real Time World Statistics
• PieColor: Online Pie Chart Maker
• LucidChart: Online Flowchart Maker
• KmlFactBook: Maps CIA World Factbook Data on Google Maps
• InternetWorldStats: Find Out Internet Usage Stats For Any Country

Just select the type of chart you want to create, set chart size and add chart data. You can also to preview the chart before generating it. And once the chart is ready you can save it to your computer or share it online by embedding onto you website.

Features:

• Create line charts, bar graphs, pie charts, venn diagrams, scatter plots and radar graphs online.
• Customize charts: add title, apply different chart colors, and change background colors.
• Download and save ready charts to your computer.
• Share charts online or embed them onto your website.
• No sign-up needed.
• Other websites for making charts: ChartAll, ChartGizmo, PieColor, Charts (for iPhone).

Check out HohliCharts @ www.charts.hohli.com

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• ChartGizmo : Embeddable Charts for your Blog or Webpage
• WidGenie: Easy Tools for Presenting Raw Data Visually
• PieColor: Online Pie Chart Maker
• Graphsy: Create Graphs & Shapes Online
• Graphing Calculator: Create Complex Graphs Online

It gives various modification options like changing colors, text, adjusting shape and edge properties, deleting and splitting images on graphs and many more functions.

Features

• Easily create graphs and shapes online
• Resize and modify shapes to your liking
• Clone, delete and add text to shapes
• Use file manager to copy, rename, save and delete graph files.
• Templates: Start new files from scratch or use the existing one as a template.
• Coming soon: drop shadows and reflections, option to import your images, share and rate shapes, embedding and some more.

Check out Graphsy @ www.graphsy.com ( Contributed by Abhijeet from Jeet Blog )

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• WidGenie: Easy Tools for Presenting Raw Data Visually
• PieColor: Online Pie Chart Maker
• HohliCharts: Create Bar Graphs, Pie Charts and Venn Diagrams.
• ChartTool: Flexible Online Chart Generator
• Charts: Track and Chart any Data from your iPhone

Features:

• Create pie charts online.
• Customize charts: colors, size, titles.
• Save ready charts on your computer.
• No sign up or registration needed.
• Similar web apps: ChartGizmo, Charts, and ChartAll.

Go to PieColor @ www.piecolor.com

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• ChartGo: App For Graphing & Charting Online
• WidGenie: Easy Tools for Presenting Raw Data Visually
• VisualEconomics: Complex Economic Data Sets on Easy-To-Understand Charts
• ManyEyes: Visualize Statistics & Interesting Facts
• HohliCharts: Create Bar Graphs, Pie Charts and Venn Diagrams.

Features:

• Create and manage all-purpose charts from your iPhone
• Visualize data on a line, bar graph or a pie chart.
• Share your charts with others via email.

Apart from the Charts app you can find many other useful iPhone apps here. These include feedreader, calculator, currency converter, text translator, weekday checker, photo finder etc. See the full list along with a quick description for each app below:

* Start Me Up – Get quick access to all of your applications
* Budget – Track and Monitor your spendings
* Bestsellers – Shows current best sellers on amazon.com
* Currencies – Check the exchange rates for major currencies
* Compass – Get compass on your iPhone screen.
* Weekday – Easily check the day of the week for any calendar date
* Calculator – Fully functional calculator
* iPhone Apps – Check latest iPhone apps in the Apple Directory
* VAT Calculator – Calculate sales tax and VAT value
* Translator – Full text language translator
* State/City Quiz – Can you spot all states and capitals in the USA?
* Country Quiz – Can you name all foreign countries?
* Calories – Track your daily calories
* World map
* Morse Code – Morse code generator and sender
* Amazon Search
* Graph Plotter – Quickly plot graphs of functions.
* World time
* Countdown timer
* SpeedyMarks – Online start page
* Mileage – Track your gas consumption
* Play Basketball
* Sunrise and Sunset times
* Call Checker – Check the right time to call?
* Mandelbrot Set – Explore the beauty of the Mandelbrot fractal
* Workout – Control and monitor interval trainings
* Astro – Explore the night sky, moon and mars
* Games Counter – A simple game score counter
* SpeedoMeter – Measure your speed
* WorldWatchr – Monitor Webcams on your iPhone
* Widgetop – Dashboard widgets on the iPhone

Check out Charts @ charts.speedymarks.com

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• WidGenie: Easy Tools for Presenting Raw Data Visually
• PieColor: Online Pie Chart Maker
• PackageTrackr: Track Packages From The Web & iPhone
• ihoundSoftware: Find Lost Gadgets and Cell Phones
• HohliCharts: Create Bar Graphs, Pie Charts and Venn Diagrams.

ChartGizmo also allows you to import data from an external source. If you got the data is on some spreadsheet (i.e. Excel) file and don’t want to enter it manually there is an option to import it. Quick and simple.

Features:

• Create embeddable charts for your blog or a webpage.
• Create as many charts as you like.
• Available chart types : Pie, Bar, and Line.
• Customize charts : size, add title, background color, show or hide legends ect… .
• Import data from local Excel file.

Visit ChartGizmo @ www.chartgizmo.com

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• HohliCharts: Create Bar Graphs, Pie Charts and Venn Diagrams.
• dPolls: Free Polls for Blogs and Websites
• Yahoo! Media Player: Embedable MP3 Player
• WidGenie: Easy Tools for Presenting Raw Data Visually
• Web2PDF: ‘Save as PDF’ Button for Your Blog

Features

• Create, store and share charts online.
• Import chart data from web address (.htm, .html, .xml,.txt, .mdb, .xls, .dbf, .db, .ten, .tee), HTML tables, Excel, Access, Text, CSV, Microsoft SQL Server / MySQL server, Google Spreadsheets.
• Choose between 15 chart types: pie, bar, line, pie, point, donut etc.
• Export ready charts as PNG, JPEG, GIF, or PDF files.
• Export chart data to XML, Text, HTML and Excel (*.xls).
• Embed charts onto web pages or blogs.
• Collaborate and work on charts with others.
• Customize chart appearance (theme, colors, fonts, sizes, and styles).
• Add notes and comment on charts.
• Keep charts private or share them with others.
• Free, intuitive, and highly customizable.

Update:  The service has been discontinued . You might want to check other similar services here.

Visit ChartAll @ [ www.chartall.com ]

• New: Follow MakeUseOf on Twitter. Recommended!
• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• WidGenie: Easy Tools for Presenting Raw Data Visually
• ThinkFree: Web Office Suite (Word, PowerPoint, Excel)
• SmartSheet: Powerful Web Spreadsheet Editor for Groups
• Peepel: Online Word and Spreadsheet
• Google Docs: Online Word, Spreadsheet and Powerpoint