VersionShelf offers secure subversion hosting with easily implemented front end administration. Subversion is, of course, a completely open source app used for revision control. Versionshelf users will find that it increases productivity as the admin side is taken care of by Versionshelf—they keep subversion secure and running without any hitches. As it uses subversion, its’ streamlined and makes code management easy. Repositories are simple to implement, and existing repositories can be imported without any problems. RSS feeds of commit logs are available, as well as email, Twitter and Campfire notifications. Versionshelf has its own subversion servers so users don’t need to install anything extra. Pricing starts at €4.95 a month. Students and teachers can use it for free, and there’s also a thirty day free trial for everyone else.