Talk about targeted advertising opportunities. LinkedIn surpasses WallStreetJournal, Forbes, and BusinessWeek to become the world’s argest audience of affluent, influential professionals.

  • 52M members
  • 43 years of average age
  • $100K+ average house hold income
  • 77% College/Post-Grad educated
Linkedin audience demographic
Linkedin audience demographic

If only you can find an forum like that for the niche you are targeting.

via Guy Kawasaki.