SteamDB, the unofficial website that tracks basically everything Steam, has a new and improved way for you to track upcoming games. With so many new releases happening all the time, it's pretty easy to get completely lost in it all. My own backlog of things to look at grows constantly and I do keep missing some pretty great looking stuff but perhaps no more.
Mentioned by Pavel Djundik on Twitter (the creator of SteamDB), the Upcoming page has been upgraded to be a weekly tracker and you can easily go back through previous weeks and check out upcoming weeks as well.
By default it's sorted by the amount of people following along, so you get the most popular titles showing at the top which is pretty useful. The trend is also a good way to see what games a lot of people are really excited about. Simple, to the point and exactly what I like without lots of big flashy banners to scroll past like on Steam directly.
I quite like their monthly calendar too, showing off the big main game each day for an even easier glance at what you perhaps don't want to miss.