EVEMon, the out-of-game app that is a must-have for EVE players, wasn't working for most people after the Trinity patch this week, but a series of bug reports over on the developer website (EVEMon is open sourced) confirms that the problem was just that CCP had taken down the API for testing. By now, EVEMon should be back up and running, ready to help you plan those skill changes out.
And in other EVEMon news, the New Features page over on the developer site is a fun read, too, if you haven't seen it in a while. Very cool to see all the new features planned for the next release: Battleclinic loadouts, a new plan printing feature, and updates to the Ship and Item browser. EVEMon is already a terrific app (definitely the best MMO-related out-of-game app I've ever seen), and it's great to see the devs are hard at work making it better.