The latest episode of the ultra popular web show Extra Credits (Season 4, Ep. 11) tackles the very thorny issue of online harassment in games. Anyone that has played a game online via their PC, Xbox 360, PS3, etc., has run into some (basically) anonymous individual who seems to have no control over what they say. They call you every name in the book for little or no reason. This episode of the show explores what can be done about it and why some of the usual excuses for allowing such behavior no longer work.
You can find the latest episode on Penny Arcade TV and a lengthy discussion from EC fans in their forums. They also offer a link to Microsoft's Xbox Live email support page where you can ask the company to provide more tools to deal with bullying, misogyny and hate speech that occurs in its gaming community.