A fellow grad student just returned from the SAPE (soc. avian paleo. and evol.) meetings out east, and had some juicy info to relate to me; I thought I'd pass it on down the pipeline...
Confuciusornis has turned up in abundance in China; estimates range from 50-100 new specimens discovered lately. Dating of the surrounding sediments is still a very very hot topic for debate.
Not to mention a few other new Cretaceous bird taxa from China, which were a big hit at the meeting apparently. I'll try to get more info.
Enantiornithines seem to keep turning up in association with titanosaurid remains, which has provoked much creative speculation of course...