for testing purpose i made some notes onto a web site of mine with the fleck annotation/graffiti tool for web pages. What can i say, it just works. One more proof for the feasebility of the concepts i tried to sell my client for nearly most of the year now, to no avail. They just don't see it, they are focused on business models :-) About which i just agree with Mr. Fletcher: 

Fletcher: “If you don’t have an audience, it doesn’t really matter what your biz model is.”