Rapportive is a browser plugin for Chrome and Firefox that automatically adds a dynamic widget in the form a sidebar to incoming Gmail messages. Thanks to the extension, you’ll get a much better overview of who’s sending you emails, as the name and email address of the people who do will be automatically cross-checked for publicly available social network presences, pictures and more on the Web, all of which get displayed alongside messages.The sidebar replaces Google’s contextual ads, so that’s a double win.
Rapportive gives you a brief bio and links to the persons various social networking profiles including LinkedIn, Twitter, Facebook and more. When you receive a mail from a person, you will get a accurate overview of who the person is.The Rapportive plugin is currently available for Firefox and Chrome only and only works with Gmail
Below is the example shows when i sent a test mail to myself
Website : http://rapportive.com/