If you’re planning to apply for a job with the city of Bozeman, prepare to clean up your Facebook page. As part of routine background checks, the city asks job applicants to provide their usernames and passwords for their social-networking sites. And it has been doing it for years, city officials said. “Please list any and all, current personal or business Web sites, 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.,” states a city waiver form applicants are asked to sign. Three lines...