Twitt Who is an extension for Google Chrome. it looks for twitter users while you browse, showing information about them.

The idea is to enrich the browsing experience by providing -in a nonintrusive manner, through popup panels- information about the twitter usernames found in any website: Beside every username found there'll be an image from where the information can be displayed, and also the extension icon will feature the number of twitter users in the site, being possible to open the information from there as well.

With "Twitt... Who?", opening user profiles in another tab is no longer needed: If a twitter user is found in a website, you can see his basic information just there. Additionally, one can log in with his twitter account, making the extension retrieve following/followed relations with respect to the users found, and enabling a "follow user" button just from the panel.

The license of this software is Freeware, you can free download and free use this social networking software.