I just heard about a delightful blog posting, "Social Networking or Notworking?" from the Open Forum blog.
"For small business owners, entrepreneurs, managers and professionals, it's become an especially sticky problem. We convince ourselves that online networking is important for marketing. It is not just personal, we tell ourselves. It is BUSINESS. However, in the terrestrial world, no business owner does marketing all day long to the exclusion of other activities. Sometimes we're just kidding ourselves."