Maybe this is shameless self promotion. If so, I apologize.
I put together a blog site to serve as a central place where I could organize my favorite links and keep up with my favorite scholarly blogs. As it is mine, its designed around my interests so there is an emphasis on Syriac history and I've included a couple Jewish and rabbinic sources as well. But as I was looking through the sites posted on these boards, I thought perhaps someone would find this site helpful too:
http://xianhistory.blogspot.com/There a lot of websites and blogs out there. The trick is not to find
all the good ones, but to find just a few scholarly sites and keep up with them for a while.