Disclaimer: I am a patron of this guy, he seems to have a better handle on what Valve is up to than most other places. (I mean with a name like Valve News Network you kinda have to...)
Covers the attempts to balance out the Steam Grand Prix over the past couple of days. Also contains speculation about what probably happened internally, namely that the people who regularly design the Steam Summer Sale are busy finishing the Steam UI update that leaked some weeks ago. (Keep an eye out for Linus in the video, while it's not a flattering depiction, he is there.)
Links:
The Vi