There's been quite a lot of discussion over the last few days about a unified technology protocol for social networks. As the technology standards become settled, more social networks are springing up all the time.There have been a number of new, niche-focused entrants in the field. A few have launched recently that aim at the post-40 year old crowd, including the San Francisco-based TeeDeeBee, which went live in September. MSN has a round-up story on these new sites. A couple weeks back, Robin Wolaner, CEO and co-founder of TeeDeeBee came to the Beet.TV studios to give us a little tour of her site. -- Andy PlesserUpdate 11/5: Business Week just published a story about boomer sites.Full Disclosure: TeeDeeBee is a client of Plesser Holland public relations.Posted on Beet.TV on Friday, November 2, 2007http://www.beet.tv/2007/11/niche-social-ne.html Less