MacScoop has a huge list (in different languages too) for your Mac/iPhone news from WWDC.
I usually follow a couple at the same time just in case some sites crash or information is mistyped. I have found these to be reliable in the past:
For the first time, I will be getting feeds via Twitter too (I'm also watching to see if Twitter stands up to today's morning load. C'mon, guys. It'll only be for a couple of hours. Hang in there!)
It's Christmas from Jobs and Apple in June! Have fun!