Google making Google Docs a universal office tool for internet users by adding multiple file formats support. One more unique feature of Google Docs is Discussions in Google Docs. Here you can put your document and make a discussions with your friends or co workers through comments.
This comment discussion on Google Docs could be quite useful in situation when you are working with your team over internet. You can add people to your document whom you want to take part in the discussion. You can also keep track of the conversation with email notification and reply to comments directly from your email.
Lets have a Look of Google Docs feature - Discussions in Google Docs

This comment discussion on Google Docs could be quite useful in situation when you are working with your team over internet. You can add people to your document whom you want to take part in the discussion. You can also keep track of the conversation with email notification and reply to comments directly from your email.
Lets have a Look of Google Docs feature - Discussions in Google Docs