Digsby

Digsby offers a platform to bring all your friends from across various clients to the same list. This helps you avoid the trouble to installing several IM clients on your machine and log into each one of them, and yet not be sure of which friend is on which list. Digsby solves this problem as it can support buddy lists from AIM, yahoo, msn and gtalk. It even lets you read your mails from different email accounts too. The best thing about Digsby is that it helps you connect to various social networking sites like facebook, twitter etc, at the same time too.