How about a button on the front page: "Take me to a random game"?
This is not a suggestion about visiting the game page for some dicefest, but instead a button that will bring up a randomly selected game from the BGG database. Sometimes, I would just like to explore, unfettered by the bounds of my (or others') imagination, the games here in the BGG database.
That's effectively what the 4 images at the bottom of the main page are. Links to 4 random games, weighted by the number of images for any given game.
Second, I wrote a bookmarklet (just now) that does just that. It's the last link on http://boardgamestuff.com/bgg-tools.html