As social applications like Facebook, Myspace, Ning, and dozens of others attain sky high valuations few are focusing much attention on how poorly most of these social networking sites monetize their enormous traffic levels.

Microsoft’s Emerging Business guru Don Dodge, in an excellent post about Social Networking, notes an example where a Facebook application only manages to generate $6,000 to $15,000 per month revenue with page views of …. wait for it …. three hundred million per month. This disparity is so great I’m wondering a bit about his source for those numbers, but it is certainly clear that social media monetization is no walk in the PPC park.

Google’s dominance in the very lucrative search pay per click market has made Google the global online advertising leader in terms of advertising traffic and advertising revenue. Despite this success, even Google has been failing to find another holy grail. YouTube may eventually justify its huge valuation in indirect ways, but it does not appear to be a very healthy way to capture revenue for Google or for affiliated video publishers.

Likewise Facebook’s key advertising revenue has come somewhat indirectly - from a guaranteed advertising deal with Microsoft rather than from clever internal advertising schemes like Beacon, which practically blew up in Facebooks … own Face when issues were raised over privacy and potential misuses of Facebook user account information.

People, and certainly the advertising market, are still adapting to social networking so it is too early to know if social networking will prove to be as fertile a ground for advertisers as search. What is clear is that not much revenue is growing there yet.