This site no longer works for most new users, since Twitter now requires all developer accounts and apps to be reviewed and approved. Sorry for the bad news. Existing feeds still work! And if you have an existing Twitter API key, you can still use it below. Otherwise, so long, and thanks for all the fish.
When you click one of these buttons, Twitter will ask you if your app should be allowed to read your Twitter stream. Click Authorize app and you'll be redirected back here to get your new feed.