I was just looking at the "An incomplete list of HN collaborative Google Docs/Spreadsheets" thread (http://news.ycombinator.com/item?id=2772398). Is it me or it just feels like Google Docs not a good tool for collaborating with a large group of people.

I am thinking on the lines of the simplicity of Etherpad and some of the powers of git/github. I really like how you can see the network of forks and how some forks take off.

Few problems.

- It's hard to see what has changed over time.

- How do I see the power contributors?

- Easy to consume different types of documents. Spreadsheets vs graphs vs text only.

- Smarter documents. Right now all documents are fairly dumb. What if I want to add something like smart sections? For example: Incomplete areas/Need more work sections in a document. I should be able to tag different areas in a document and quickly see all the incomplete areas in one without having to do any extra work. It also makes it easier pick out information from large documents.

Thoughts?