An idea I had recently that's vaguely related is that it would be really cool to try to put together a massive product information catalog/database. Maybe it could be maintained similar to Wikipedia in terms of editing/review/adding new content - the idea being that it should be as objective, unbiased, and complete as possible. The impetus for this thought was of course that I hate advertising and on some level think it shouldn't even exist, so I was thinking of what an alternative might look like.