You can author and run your own social online environment on the server, as well as visit other people's servers.
FileZilla is a fast and free FTP client for Mac, PC and Linux view it
FileZilla does all the things you need an FTP client to do, plus it has some nice extras. view it
Keep your friends close and your enemies... far away with Facebook's privacy settings view it
The new iOS 4 for iPhone and iPod Touch allows you to manage all of your email accounts at the same time! view it
Managing your file transfers is easy with FileZilla view it
Adium includes a cool Xtras feature that lets you have more fun with your IMs view it