A few things which I think are outdated.
Roleplaying
Rubi-Ka Times link, this aspect of AOU is no longer available.
Ingame Tools
Atlantean Market Watch bot is defunct.
Recipenet is defunct (Recipebot is online tho).
Useful Internet Links
Atlas of Rubi-Ka link is for the old url, thus it's broken.
AOCrayon link is dead.