How to extend the functionality of Gmail using web applications

We have several ways to intelligently organize your mailbox to Gmail, as well as to expand its functionality. First - this is, of course, gmail LabsWhere you'll find plenty of plug-ins created by the development team email from Google. And then there are plug-ins for Chrome and Firefox, Which will also help you to make email better. But we will go through and use the third-party Web applications. Although, if only because they are much more effective than anything else.

1. Other Inbox
This application (there are plug-ins for many email clients, including Mail.app) analyzes the contents of your mailbox and automatically sorts the folders. For example, a letter from the account of the Amazon and a reminder about the payment of the lot on Ebay is an application send to folder "Accounts".

2. Unsubscribe.me
An application that helped me a lot. It allows one-click unsubscribe from all sorts of newsletters and other spam from the sites you ever registered (but forgot to uncheck "follow the news of the company").

Fly in the ointment is that the application is not completely free. It is possible, for the sake of the experiment, to try Unsubscribe.me five letters, and then will have to pay.

3. FindBigMail.com
A service that helps you find great letters in your mailbox. To remove them and free up disk space. Once I I wrote about him.

4. Rapportive.com

If you get a letter from an unknown person, the Rapportive will help you understand exactly who you wrote. Using the sender email, the app collects information on it and displays in the sidebar to the right of the letter. Very comfortably.

5. AwayFind.com
If you are on vacation, but are afraid to miss an important email, you can use this application. Check email on vacation - the last thing. And with AwayFind you can set up an alert about an important letter. It will come as an sms or call. The main thing is to keep the phone switched on.

6. email Oracle
A very interesting application that allows you to keep track of whether or not the recipient has read your message. Email Oracle puts the letter in trekking image and if the destination includes images, you will be immediately notified of the reading.

7. eTacts
The application is similar to the already mentioned Rapportive. However, more functional. Can show the history of your communication with a particular contact, send notifications if you have completely forgotten about an important man.

8. TripIt
This is a service for planning trips and tours. And its Gmail-extension scans your inbox for any information about travel. And neatly stores the all the information in your TripIt-account.

9. Boomerang
An application that helps send emails pending. Boomerang sends emails stored in a specified time. Thus, it is possible to pass very attentive person and not miss a birthday, for example.

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Of course, the list that I have compiled for you, does not claim to be the most complete and objective. I'm sure you're using another dozen other web application for organizing email. Please share with us those applications and extensions that you use.