Shameless self promotion: there is also my http://tempalias.com http://tempalias.com which doesn't require you to create an account, or even just visiting the s

Shameless self promotion: there is also my http://tempalias.com http://tempalias.com which doesn't require you to create an account, or even just visiting the site more than once (there is a bookmarklet). Also, the full site is open source (node.js), so you can run your own at your own domain