crobb305 - 5:52 pm on Apr 28, 2011 (gmt 0)
some of my pages on hubpages are #1 and make a couple hundred $$ per day (and yes they are #1 for high cpc/high traffic keywords which Panda definitely included). Same about EZA and Buzzle, I use a lot of Web2 sites.
Two of my writers have contributed very good research/expertise to those hubs you mentioned. It may be a function of author credibility in a lot of cases. There has been speculation (earlier in this thread) that author identity, trust, and reputation modeling could be used as a ranking factor.