On Tuesday, the WSJ.com unveiled a long anticipated site redesign. It launched to record traffic, thanks to upheaval in the financial markets. Yesterday, I sat down with Wall Street Journal Deputy Managing Editor Alan Murray to talk about the redesign. One of the most significant new developments is the "social" aspect of the site. Registered users, using their real names, comment on stories and provide valuable information in a "protected network," Murray tells us. With such a giant base of registered users, who pay for the subscription, this could indeed shape up to be a very smart social network-- and one valuable to advertisers. -- Andy Plesser, Executive Producer Less