Free reference

摘要

Free databases are to the world of electronic reference as the old saw comparing sex and pizza: even when cold, it's still pretty good. But when they're hot-Scarlett Johansson in Phoenix in August hot-it can be a bibliographic knock-your-socks-off, toe-curling, who's-your-daddy experience. Say hell-O, to complete the sexual metaphor, to W0LFRAMALPHA.COM. Introduced only six months ago in May, the web site was recently honored by the Charleston Advisor as Best New Product in its October 2009 Ninth Annual Readers' Choice Awards.