The first is the Class of 2k8 site. The class of 2k8 is a group of authors who are having their first book's published during 2008. I spent time last weekend looking at book descriptions/publisher with the thought in mind "What books are being accepted from new authors and by what publishers?" Also, I might add, two authors with books coming out January 8 are:
Liz Gallagher (The Opposite of Invisible)
Lisa Schroeder (I Heart You You Haunt Me)).
The second is Illinois-SCBWI's online newsletter. It contains a lot of good articles -- and there's also the one I wrote for the edition just posted (my first article contributed). You can find it in the "Fly on the Wall" section.
Happy Writing in 2008!