[inetsee]

I would suggest that you take a look at the Less Wrong website ("http://lesswrong.com). It describes itself as "A community blog devoted to refining the art of human rationality". There is a wiki, and "sequences", which are sets of posts on particular topics organized into a recommended order of reading. The posts on the website are very strong on critical thinking and analysis, not so much on creativity/innovation (in the context of new business/new product creation).