Since opening up last July, Google’s Wikipedia competitor Knol has attracted more than 100,000 entries. While that’s an impressive number, it’s well and truly dwarfed by Wikipedia’s 2.7 million English-language articles. And while Knol’s “moderated edits” model might mean that there are fewer visible edit wars, there are still plenty of unsourced, rambling and opinionated articles which wouldn’t survive five minutes at Wikipedia (check out superman of calculated happiness for just one example).