Once you go to the Chrome Web Store and install the extension you just need to enter the number of accounts you have, and the log in credentials for each one. The icon for the application will sit on the top right of your screen, by the address bar, and will tell you when you have a new mail message on any of your accounts.

When you click the icon you will see a preview of your message. You can then click that and be sent to Gmail, where you can view the message in its entirety.

Features:

• Keep track of multiple Gmail accounts.
• Keeps track of your mail in real-time so you never miss a message.
• Preview of message without going to Gmail.
• Click preview and go right to Gmail to read your message.

Find Google Mail Multi-Account Checker on the Google Chrome Web Store

There are two ways to use it – use their browser extension for Chrome or Firefox, and/or create an account with them. Then connect your Gmail with them and emails will pass through their servers first where the template is applied, and then sent to the recipient.

You’d need to sign up with them so that you can choose your template and add various other features using their drag and drop interface. Connecting your Gmail with them also ensures that you can use them while sending emails from Android or iPhone.

Demo video:

Features:

• Add rich templates, social features to your emails sent from Gmail.
• Provides extensions for Firefox and Chrome.

Check out BrandMyMail @ www.brandmymail.com (via TechCrunch By Abhijeet from GT Mobiles)

You can find people by name, location, company, job function or a combination right inside Gmail or Google search (you’ll see a Monkey Contact icon that you can use). It doesn’t matter on which network that contact is, it’ll find it. It works as a browser extension for Chrome, Safari and Firefox.

The tool scours through your browser data and your data on various sites to unearth those contacts with ease.

Features

• Find your contacts from anywhere right in Gmail and Google search.
• Add-on for Chrome, Firefox and Safari.

Check out MonkeyContact @ www.monkeycontact.com (By Abhijeet from GT Mobiles)

Unbox is a handy online tool which displays information about your email in the form of an infographic. You can check out the list of people you email the most or the day when you email the most and more.

Using the service is easy. All a user has to do is visit the Unbox website and submit their email address for which they want to get inforgraphics on. Do not worry, all the data is kept private and confidential. Once done, just go to your email inbox and check the email from Unbox, which might take some time to arrive.

Features

• Free to use.
• Know more about your inbox with the clean, well made infographics.
• Works with Gmail only.

Check out Unbox @ http://unboxapp.com/ (By Hammad from TechnicallyDigital)

The service allows you to connect with your favorite social networking websites, such as Facebook, Twitter, LinkedIn, etc, and never miss important updates and events (birthdays, event dates, etc.).

Not only that, but you can easily send out a message to your contacts right from your Gmail inbox, saving you time and keeping you connected to your favorite social network.

The service is very easy to use. All you have to do is log into your Gmail account, and let Mingly download a small addon for your browser (in this case, Mozilla Firefox). Once you have installed the addon, just proceed to your inbox where you can connect with your favorite social networking websites and manage them.

Features

• Free and easy to use.
• Important social networks integrated with Gmail.
• Birthdays, and other important events are never missed.
• Ability to message contacts from right within Gmail.

Check out Mingly @ http://ming.ly (by Hammad from TechnicallyDigital)

You can label a contact as family, friend, co-worker or create a completely new label. You can add multiple notes about that person so they are visible any time you are sending or receiving email from them, and you can also add notes about a particular thread of conversation.

MailSlayer also lets you create HTML rich snippets that you can use as templates to send out emails quickly. You can turn any of these features on or off from a little drop down on the top right corner.

• Assign labels to contacts and add notes about them.
• Add and see notes about particular conversations.
• Create email snippets with rich HTML.

Get MailSlayer from http://www.mailslayer.com

Gmail Attachments to Docs is free to use and it lets you save Gmail attachments directly to your Google Docs accounts. The tools come as a browser extension for Google Chrome and works fine for the latest version of the browser. The extension adds a new “Save To Docs” option next to your attachments within your Gmail messages. To save those documents in Docs, all you have to do is click on this option and they will be saved in your Docs account. A notification message is shown, confirming the save.

Features:

• A user-friendly tool.
• Lets you save attachments in Gmail directly in Docs.
• Comes as a browser extension for Google Chrome.

Check out Gmail Attachments to Docs @ https://chrome.google.com/webstore/detail/epoohehjbaenldfbahgcegdmlogakgin (By Umar from AllthatIsApple)

Offline Google Mail is a browser extension for Google Chrome that adds a highly useful functionality to your browser – reading and composing emails offline. After installation the extension asks you to allow offline emailing; this allows the extension to keep local storage of your Gmail account which is synchronized every time an Internet connection is available.

Your downloaded emails can be read online; you can compose messages offline to be sent later; you can access all your folders, archive and delete mail, and star your emails. All these convenient features are available right within Chrome in a sleek blue email reading interface thanks to Offline Google Mail.

Featured:

• A user-friendly browser extension.
• Compatible with Google Chrome.
• Lets you read Gmail messages offline.
• Lets you compose emails offline and make changes to your Gmail inbox offline.
• Synchronizes changes you make whenever internet connectivity is available.

Check out Offline Google Mail @ https://chrome.google.com/webstore/detail/ejidjjhkpiempkbhmpbfngldlkglhimk (By Umar from AllThatIsApple)

But the best part is, you can also reply to any text message from any of these interfaces (Gmail, Gtalk, browser) and the recipient will see your actual phone number instead of a dummy number or email address. Your Android application is kind of your console and you can use that to specify where you want your text messages forwarded to. It is an especially great app for business meetings or classes where you cannot use your cellphone but still want to receive and send text messages.

Features:

• Receive text messages on Gmail/Gtalk via your Android phone.
• Respond to text messages from your Email/Web.
• See how many texts have been forwarded.

Get DeskSMS from Android Market [Via LifeHacker]

Once you choose your service, every email link will open in your specified webmail service with the address field already filled out. There are other solutions out there that do the same thing but this one is one of the simplest ones. It will get even better with time as the developer adds more webmail services.

Features:

• Open email links in Gmail, Hotmail, etc.
• Choose form 5 different webmail services.
• Works with Chrome only.

Download MailTo from Chrome Gallery