Look out for an article by Rebecca Buckman in today's WSJ. While she is worried that the Web 2.0 may be a bubble, her biggest worry about ZocDoc seems to be that we have only a 2% market penetration (less than three weeks after launch): Among firms presenting there was ZocDoc Inc., which lets people make appointments with doctors and dentists online. The New York company has listings for only 2% of the dentists in Manhattan and no physicians, but it has attracted interested investors, says its CEO, Cyrus Massoumi. Read the full article