They are already being usurped by wikis, blogs, google docs, Wordpress, google wave-like things, all if which provide the basic functionality, but allow multiple people to edit a document simultaneously and keeping only one copy prevents the ridiculous organizational head-ache of making sure everyone edits the latest copy. … They have Google Sites which allows multiple team members to edit a webpage with almost the same functionality as PowerPoint, and it is published and can allow (though we don’t allow this) for comments and global interaction.
