Advertisers Face Hurdles on Social Networking Sites

NYTimes.com: "FOR some time, Procter & Gamble, the world’s largest advertiser, has been dipping its big toes into the vast pool of Facebook, now the world’s largest social network. I recently knocked on the doors of both companies to hear how the experiment was going. Neither was inclined to say much.

Independent experts on Web advertising have been watching, however, and what they see is a myriad of difficulties in making brand advertising work on social networking sites. Members of social networks want to spend time with friends, not brands."