OwnCloud is at the forefront of open source file sharing and cloud storage. It is sometimes introduced as the open source alternative to Dropbox, but that comparison misses a ton of cool features that ownCloud has and Dropbox lacks. As well as file synchronisation, ownCloud offers things like groupware functionality (e.g. calendar, task scheduler, address book), music streaming, and its developers are right now working on office suite integration.
A lot of work goes into producing an academic journal. Such a publication carries articles from researchers and scholars which together represent the cutting edge in a field of human endeavour. Plenty of work goes into most similar types of publications too; magazines and newspapers all need careful copy editing, proof reading and type setting. There could be multiple contributors writing dozens of articles and they all need bringing together into a single publication.