In light of a recent promotion at my full-time job, I just do not have the time to manage these sites anymore. I have only been working on sites since April 2011, and I know that a webmaster with good SEO techniques among other things can milk these sites for a lot more than I did (over $2k in the past year). They also need some work after penguin, which I have no time for. That said, some of them fully recovered on their own (no change on my part)
Please see my thread here:
http://forums.digitalpoint.com/showthread.php?t=2504464
Any questions? webmaster[at]twobigtits[dot]com