Because if there's one thing I like more than pr0n, it's not paying for it. Online registration and use of their local search tool are free for men, and everything is absolutely free for women. If you don't know what Wikipedia is by now, perhaps you should check the Wikipedia page for it. Proceed with extreme caution or watch your productivity evanesce. WolframAlpha describes itself as a "computational knowledge engine. This thread is closed to new comments.