If you've ever had any misgivings about being the achievement whore that you really are -- and I confess I might be projecting a little -- then here's a great way to turn respectable: True Achievements. Using this site, I was able to raise my gamerscore from 22,870 to 29,590 in the space of a few seconds, without even turning on my Xbox 360.

True Achievement's "about" section explains how it works.

We believe the harder an achievement is to obtain, the more points should be received.

We've decided that an achievement's difficulty can be accurately approximated by using a formula based on how many people have that achievement compared to how many people own the game. We also understand the phrase 'accurately approximated' is a contradiction in terms but are refusing to remove it on the grounds that it sounds impressive.

From there we multiply the original points given to the achievement by our difficulty score and end up with the TrueAchievement score for that, for want of a better word, achievement.

By adding up the TrueAchievement scores for all the achievements you have won, you get your GamerTrueAchievement.

To sign up, you simply register with your gamertag and let the new math do its thing. It also offers plenty of options for sorting your achievements, tracking your progress, and even figuring out the best way to raise your newly revised gamerscore given the games you already have. If you care about that sort of thing. I may be projecting again.

(Thanks Royal Fool!)