Saw this article in my feeds earlier and was quite impressed with the selection of resources for designers and front end developers. Tons of useful stuff in here. Bound to be something for just about everyone...
Really huge list, saw it before but the size of the scrollbar scared me.
I subscribed to Videry. Great articles on design and what's important is that they are educational, not just random reads.
Redpen is nice. I don't hate back and forth emails with clients, but on certain projects this becomes useful.