Do you have several Twitter accounts and wish to bundle them easily while compartmentalizing the activities of your feeds in a simple and pleasant interface? Tweetdeck is for you: customizable to the extreme, this tool allows you to connect all your twitter accounts, personal or professional, and switch between them easily.
The interface consists of several columns, each customizable in their display and contents, displaying what you want, where you want. Tweetdeck also allows you to tweet directly through its interface, so you can manage all your accounts and your network through a single location. You can follow streams based on hashtag, or your own mentions, and keep track of your notifications. This tool puts all the information you need before your eyes clearly, and organized the way you need it to be. Tweetdeck is available in browser or download on Windows and Mac, and is completely free to use.