Ever wonder how contents sites stack up against each other? Kimberly White has figured it all out and has put it in graph form over at Crunchydata.com. The data is for 2010, so it's current. Click on the link, above, for the facts, but it looks like Associated Content, About.com and Suite 101 top the ranks.
This is just the information I've been looking for. I'm grateful Kimberly took the time to sort it all out.