Hacki's Ultima Page is the only Ultima website dedicated to nitpicking the Ultima series, i.e. discovering every little fault in the games. This site is an extensive archive of Ultima nitpicks submitted by many different people; anyone can submit a nitpick, though there are a few simple rules to prevent it from getting boring (no nitpicking of bugs, for example).
Hacki's Ultima Page started off by aggressively nitpicking Ultima 9, to prove what a poor game it is. For fun, the nitpicking tradition was eventually extended to all the other Ultimas.
IT-HE Software is a unique site mostly dedicated to abusing the games' technical flaws and glitches (aka bugs). This page is famous particularly for its anti-walkthroughs (walkthroughs describing how to beat the game by breaking all the rules, exploiting bugs, being evil and enjoying it a good deal), but also for its extensive list of fun things to do in the games from Ultima 6 to 9. Even after having read through it several times, you can go back one day to read it again, and it will still make you laugh.
Nowadays, you can enjoy a new dimension of mischief via the related YouTube channel.
