I started up again too. I only do their calls for content if they are relatively high in payment (and relatively high nowadays is $3 or more, sadly.) Usually the calls for content don't get me near the number of page views that anything else I write does. I do like how now you can preview and see how many pages your article will take up, so you can add a paragraph or two if you need to to push it to a third page.
I wrote one about Mafia Wars on Facebook a couple of months ago that earns me about $10 a month now that I am up to clout 8. That one constantly amazes me, because it was one of my very first articles, and I didn't think much would come out of it.
I tend to do a lot of writing for them when I'm traveling, because I'm not focusing on the 400 other things I need to be doing - cleaning the house, getting work done, etc. I did 10 articles just over Thanksgiving weekend because the kids were occupied with visiting with family members, and I could just hang out and crank 'em out in spurts during the day.
Single WAHM to 5yo DD, 2yo DS, and forever 7 week old angel DD.