I effectively just track metacritic and one review site that I browse over to every couple of days and read the reviews that look interesting. I go out of my way to avoid learning about future releases, with the exception of Atlus games which can be missed in a way that Halo 3 can not be missed (Halo 3 will still be something you can get two years from now). This way I am only rarely excited about something in the future, which right now I consider a waste of time; there's so much good stuff now that drooling over something six months away is just silly.

I am not completely successful; I knew about Fallout 3 for a while because it got onto some of my RSS feeds that had nothing to do with gaming per se. But for the most part it works.