A recnet product by Google is Knol (http://knol.google.com) . A knol is a unit of knowledge. As you can see from the features below, it is more like a wikipedia , or a collbrative scholarly tool . It has customized options for the kind of license you want, your self rating , viewer’s rating, collbration enabled or not. An extremely nifty tool, but hosted by the big G will have its share of suspicions among the academic community. Here is the snapshot of an empty knol page.And here is a link to a knol created by me at http://knol.google.com/k/ajay-ohri/data-mining-through-cloud-computing/d8o4tiw9xa68/3
Just re-iterating – a unit of knowledge!