Wikipedia
Snapguide
Snapguide is an iOS application and website that specializes in user generated step-by-step how-to guides. Users create guides on the site, where community members can comment on, rate, and share guides. It was created by Daniel Raffel and Steve Krulewitz, launching in March 2011. Snapguide is committed to helping people easily share knowledge, tips and tricks, and DIY projects with people who share similar interests.