I'm signing up for Entrecard again. I will not use it for all my blogs, but I'll start with this one and see where it goes from there.
I know a lot of the hard-core droppers like to hit EC and Adgitize, killing two birds with one stone. I'd put all the banners in the same place and make it easy for them.
I will not be investing nearly as much time on EC as I did before, but I'm willing to see how it's working under the new management.