I’ve been using the Internet since it was available back in Norway. Through my years I’ve changed my online persona and user names a few times, often using different user names for different web services. It’s not always easy to remember what you registered where, and sometimes it’s annoying signing up for a site only to find out your user name is taken. Enter Usernamecheck.com. They have a search engine database that will check your name against 68 of today’s popular online services (Yep, that would be Web 2.0).
TechCrunch readers have commented on the service being inaccurate at times. You’ll just have to check for yourself. Or raise your stalker rating and check on your friends! ;)