Dropbox is the easiest way to store, sync, and, share files online. There's no complicated interface to learn. Dropbox works seamlessly with your operating system and automatically makes sure your files are up-to-date. Available for Windows, Mac, and Linux.
A few bit.ly users who also heavily use Delicious and Twitter have asked for an easier way to sync all these services. We recently came up with a pretty good way to automate this sync process using Twitterfeed.