I've run across some great new blogs thru entrecard. I'm leaving mine up for a bit longer to see what happens with this cash out program. I've got over 10,000 EC waiting in the wings, but no blogs to advertise on anymore :(
I too am getting rather dismayed with entrecard and may take it down. There has been much lesser purchases of normal ads (via credits) on my blog and a lot of "junk" paid ads.. have rejected all the paid adds as they are not doing any good for my blog.