Seoquake: A great Firefox add-on

Have you heard of Seoquake? It is a complete SEO tool which can be compatible both Internet Explorer and Mozilla Firefox. On the top of page, you will see a bar that automatically detects the status of your website visit which composed of Google PR, domain PR, Yahoo links, Google links, MSN links, Alexa rank, inbound and outbound links and most especially, it let's you enable a do-follow add-on, which you can see links in blue and red. Blue represents it's do-follow, while red represents no-follow.

This is a perfect tool for easy determination in do-follow forums, blogs, social bookmarks, etc. Try Seoquake and download it for free!