ownCloud

With ownCloud you can sync & share your files, calendar, contacts and more.

Access, Sync and Share your data, under your control!

ownCloud provides access to your data through a web interface or WebDAV while providing a platform to easily view, sync and share across devices—all under your control. ownCloud’s open architecture is extensible via a simple but powerful API for applications and plugins and works with any storage.

Read More:

owncloud.org

gitbook.io

GitBook is a tool for building beautiful books using Git and Markdown. It can generate your book in multiple formats:

• Static Website: This is the default format, it generates a complete interactive static website.
• PDF: A complete PDF book with exercise solutions at the end of the book.
• eBook: A complete eBook in ePub format with exercise solutions at the end of the book.

GitBook is open source and completely free, the source code of the tool is available on GitHub.

gitbook.io