Recently, my brother was searching for some good adventure games. I directed him to GiantBomb.com, the video game website about video games, and we got zilch. I decided to investigate a bit, and found that no genres are listed at all. Type in "Real Time Strategy", or "First Person Shooter", and you'll get either nothing, or a whole bunch of stuff that isn't really relevant.
I recommend that we make genre articles, that explain what the genre is, as well as list games that are a part of that genre.