Long article in the January 30, 2010, Economist magazine about social networking. I thought it raised a number of good points, especially for those that are skeptical about the longer term impact that sites like Facebook, Twitter, etc. will have on business.
Here's an excerpt; full link below:
This special report will examine these issues in detail. It will argue that social networks are more robust than their critics think, though not every site will prosper, and that social-networking technologies are creating considerable benefits for the businesses that embrace them, whatever their size. Lastly, it will contend that this is just the beginning of an exciting new era of global interconnectedness that will spread ideas and innovations around the world faster than ever before.