You can search the website, browse articles by categories, leave comments and subscribe to content of your interest.

The site also includes regular contributions from HowStuffWorks.com on variety of topics, and for news junkies it provides iPhone/iPod touch app to read the news on the go.

Features:

• New science and technology site from Discovery.
• Features breaking news and in-depth science articles.
• Covers topics on Earth, Space, Tech, Animals, Dinosaurs, Archaeology, Human and History.
• Leave comments and subscribe to content of your interest.
• Includes regular contributors from HowStuffWorks.com on variety of topics.
• iPhone and iPod touch version supported.

Check out DiscoveryNews @ http://news.discovery.com

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

• ThisDayInTech: Historical Tech Events Calendar From Wired
• ZAPReader : Practise Speed Reading Online
• TodaysFrontPages: See Front Pages Of Newspapers Around The World
• ThePhotoStream: Get News In A Rich Photo Interface
• Spreed: Speed-Read your Feeds and Documents

Doing these calculations manually takes quite some time. If you want to quickly perform these and other matrix operations, check out Online Matrix Calculator. Simply enter your matrix into the text area below (numbers separated by spaces), check operations you want to perform and click “Calculate”.

Features:

• Online matrix calculator for Math students.
• Perform matrix operations including finding determinant, trace, rank, inverse, matrix multiplication and other operations.
• Enter matrix elements separated by spaces and click “Calculate”.
• Free, online, no registration.

Check out Online Matrix Calculator @ www.bluebit.gr/matrix-calculator/

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• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• Impact Calculator: What Happens when Meteorite Hits the Earth?
• xThink Calc: Online Calculator for your Drawing Pad
• Wowbrary: Get Alerts on New Book Arrivals From Your Library
• WiZiQ : Virtual Classroom
• WhatsTheCost: Free Financial Calculators

Subjects include transportation, physics, inventions, computers, Internet and others. Each article discusses how a particular event or an invention was important for development of technology and human life in general. Moreover, users can browse articles by date, category or tags.

Features:

• Calendar of important technological innovations (inventions, events) in the history.
• Subjects include transportation, physics, inventions, computers, Internet and others.
• Browse articles by date, category or tags.
• Provided by Wired magazine.

Check out This Day in Tech @ www.wired.com/thisdayintech

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

• DiscoveryNews: Cool Science And Technology News Site
• ZAPReader : Practise Speed Reading Online
• ReadSpeeder: Online Speed Reading Tool
• Zinepal: Online Ebook Creator
• YourVersion: Scans Web for Stuff You Find Interesting

All these illusions come from science, physiology, spiritual practices and the audio visual arts. The site is based on the illustrated book Get High Now which profiles around 200 ways to alter human perception and consciousness.

You can browse the website by categories (visual and audio), experience illusions online and read their scientific explanations. There is also an option to preview the actual book and order it online.

Features:

• 35 interesting audio and visual illusions to try online.
• Includes both audio and video illusions.
• Experience illusions online and read their scientific explanations.
• The illusions are taken from the Get High Now book.
• Preview the actual book and order it online.
• The site has an iPhone app available (0.99 $).

If you like the kind of stuff you get on GetHighNow make sure to read our article listing resources where you can get hallucinogenic desktop themes & screensavers.

Check out Get High Now @ www.gethighnow.com

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• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• URDB: Set Your Own World Record
• Impact Calculator: What Happens when Meteorite Hits the Earth?
• How Many People Are In Space Right Now?
• You Don’t Know Jack
• YearbookYourself: Give your Photos 1950s, 60s, 70s …. look

The site also has a paid subscription option which lets you watch HD shuttle launch videos.

Features:

• Comprehensive coverage of latest space missions around the globe.
• Shuttle launch schedule with up-to-the-minute updates.
• Follow mission updates on Twitter.
• Get SpaceFlightNow Plus subscription to watch the shuttle launch videos.

Check out SpaceFlightNow @ www.spaceflightnow.com

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• MakeUseOf 'Geeky Fun' - Hillarious Geeky Pics and Videos from different parts of web.

• Yapta: Get Refund on Flight Tickets
• Traveas: Track Flight Information On your Cellphone
• ThisDayInTech: Historical Tech Events Calendar From Wired
• SleepingInAirports: Traveler’s Guide to Sleeping in Airports
• SeatGuru

Features:

• See the impact of different-sized meteorites hitting the earth.
• Visualize damage from crash, impact energy, size of the crater, etc.
• Available in English, Cymraeg, Deutsch and Espanol (languages).

Watch this cool “Meteorite Collision” video:

Visit Impact calculator @ www.down2earth.eu/impact_calculator

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

• Matrix Calculator: Do Matrix Calculations Online
• GetHighNow: Get High Without Drugs or Alcohol
• You Don’t Know Jack
• YearbookYourself: Give your Photos 1950s, 60s, 70s …. look
• xThink Calc: Online Calculator for your Drawing Pad