1- Docs, PDFSs, and PowerPoint Viewer
Automatically previews pdfs, powerpoint presentations, and other documents in Google Docs Viewer.
2- Evernote Web Clipper
Use the Evernote extension to save things you see on the web into your Evernote account. It even lets you search through your notes.
3- Session Buddy
View and save the state of all open browser tabs in the current or past browser sessions.
4- Snippy
Snippy allows you to grab snippets of web pages, save them for future use and upload them to Google Docs. Snippy capture rich
This extension adds an email button to the toolbar which allows you to email the page link using your default mail client or Gmail.
6- Remind Me
Simply set reminders so you wouldn’t get carried away with browsing.. remind yourself of online stuff that you want to do later, job tasks that need to be done at a specific time, or just about anything that you would hate to miss!
7- Stay Focused
StayFocusd increases your productivity by limiting the amount of time that you can spend on time-wasting websites.
8- My Shortcuts
Quickly access your favorite Google™ Web Apps: Gmail™, Contacts, Calendar, Docs and other Google™ services, or create a new email, event, document, spreadsheet or presentation.
9- Visual Tabs
This chrome extensions is to help users to navigate their tabs easier by visual thumbnails with cover-flow style, and users can scroll their mouse and use keyboards to navigate tabs, and have option to delete tabs within popup window. There are 6 different nice backgrounds for users to customize and more options in the option page. There is hotkey to open this extensions, which make it more useful.
10- TabJump
When working with many tabs at the same time, it’s hard to remember which one you want to go next. TabJump highlights frequently used tabs and related tabs so you can easily jump between them. And never worry again about closing tabs by accident, for TabJump can protect them, or even restore closed tabs!
11- AdBlock
AdBlock for Chrome! Block all advertisements on all web pages, even Facebook, Youtube, and Hulu. It works automatically: just click “Add to Chrome,” then visit your favorite website and see the ads disappear!
12- WOT
Web of Trust (WOT) shows you with intuitive traffic lights which websites you can trust for safe surfing, shopping and searching on the web.
13- Google Dictionary
With this extension, you can: 1) Double-click any word to view its definition in a small pop-up bubble. 2) View the complete definition of any word or phrase using the toolbar dictionary.
14- Google Translate
This extension adds a button to your browser toolbar. Click the translate icon whenever you want to translate the page you’re visiting.
15- myNotes
automatically creates a note when you select a text and bookmarks it. Search on Google and export to a Google document your notes.