It may not have the sexiness of Myspace, or the hype of Youtube, but many a startup could learn something from focused and well executed Meetup.com. Founder Scott Heiferman has been diligently building his company which enables people to find and meet others with shared interests. I have been a member of “NY Tech Meetup” for a couple of years, but there are community groups worldwide on almost any subject. Scott is also the co-founder of the popular photo social networking site Fotolog.com.

Links: Meetup.com, Fotolog.com.