Yahoo Blocks Trillian

Yahoo to Trillian: Talk to the hand | CNET News.com

Yahoo on Wednesday began blocking Cerulean Studios' Trillian software from communicating with its instant messaging service in its latest step to fence its popular client from third-party integrators.

If your Trillian IM account is acting funny, this is why. Can't we all just get along? Gregory, guest author at Get Real has a good analysis.