Jason McCabe Calacanis’s weblog on social networks software is the most comprehensive news site on the industry … period.
i’ve recently got turned on to the the site but now i will be sure to read it every day. Calacanis gives very detailed information and he is remarkably accurate and informed with rumors in the space.
you should also read corante.com/many for more analysis than weblogsinc.
also, check out marc canter and dina mehta. i’ve created a blogroll on my site for the social software officionado: http://www.whizspark.com/blog
have you checked out eurekster?