Valve have remembered that Steam Labs exists and have a new experiment for us all to try: a personal recommendations calendar for recent and upcoming games.
While Valve already have various lists you can go through, and a discovery queue for suggestions, this new calendar might make things easier for you to plan your upcoming purchases. Based on data collected from people with "similar playtime profiles to you" it then goes over their wishlists to help build a release calendar for you. That, and what games you've put the most time into to help build up some genres and it refreshes daily to bring all the data together.
Valve say that while it shouldn't change a whole lot each day, it will evolve with time as the 8-week look moves on.
It's actually pretty great looking and quite a neat idea:
Check out your personal Steam calendar. More details in the blog post.