Ars Technica:

Background checks are standard procedure for many jobs, as it allows employers to identify problematic legal histories and things of that nature. Bozeman is no exception, as it uses a waiver form to obtain an applicant's consent to use their Social Security and driver's license numbers to dig into their past. But the form is notable in that about a third of area that needs to be filled out by an applicant is devoted to website information.

"Please list any and all, current personal or business websites, web pages or memberships on any Internet-based chat rooms, social clubs or forums, to include, but not limited to: Facebook, Google, Yahoo, YouTube.com, MySpace, etc." the form reads. But Bozeman isn't simply interested in finding out where to look for potentially embarrassing personal details; the city wants full disclosure, since the form demands username and password information for each. City employees will apparently be able to dig through any information applicants have put online, regardless of whether it's accessible to the public.

I know one city for which I will never work.