1. Webpage Screenshot
This is an extension which a use. This is extension helps you take screenshot of any webpage in seconds. This can save bloggers time and they need not download any software
Get the Extension!2. Alexa Toolbar
This is another official extension by Alexa. This extension shows you the Alexa rank and ratings for any webpage
3. Page Rank
With this extension you can check your updating pageranks
Get this Extension!5. Blog this!
Get this extension! 6 Digg for Chrome
Get this extension! 7. WordPress Comments Notifier
Get this extension! 8. Untiny
Get this extension! 9. Shareholic
Get this extension! 10. Image Cropper
Get this extension!