"This may sound like a recipe for disaster, but the results are impressive. While many of the site's 130,000-plus articles are definitely works in progress, many are rich, concise, and polished. ... Surprisingly, our time spent on Wikipedia turned up no junk entries and no defacements. ... A few of the articles seemed a bit dated, and we came across many red links or blue links that led to single-sentence placeholders. But for the most part, the items were useful and thoughtful."