You keep seeing little improvements here and there to the Stack Overflow engine, but apart from the Stack Overflow blog that talks of the major events I haven't heard of a blog-like site that tells you the newly implemented features. Like recently we have:
- Copy profile from Stack Overflow, Server Fault, Super User, Meta Stack Overflow
- Comments by OP show in a box
Or can we use this question to post updates? .. with little pictures if possible.