Computer Science 101: A Case Study In Google Applications:

Google’s efforts with Google Apps have fairly quietly become quite significant. I find gmail excellent (and Google talk and Google calendar are good but hopefully will be improved significantly). I must say I find Open Office very good and so don’t quite see the value in Google docs but maybe I am missing something (for those few documents that benefit from collaboration Google’s model sounds interesting - though a wiki seem like the best option in that case). Seems very possible Google Apps are an example of Clayton Christensen’s concept of disruptive innovation.