Sometimes you just don't want to give up your privacy to get a newsletter or freebie… so here's a site where you can get real-looking info to use in these types of situations:

Fake Name Generator

Of course, I would never suggest this data be used for evil purposes, but if you just want something to use so you don't get slammed with spam or other unwanted mail, this site is for you. It's also good for real-looking test data, so you can test your new application without using someone's real information.