Serving up renters through social networks connects property managers, renters, a San Francisco-based company, is tapping into the power of social networking in an effort to bring more referrals to apartment communities.

Property managers work with the site to offer "referral bonuses" ranging from $200 to $1,000 to existing renters who draw in new renters using social networking sites including Facebook and Twitter, among others, and e-mail messages, according to a site description.