Jottacloud

Recommended for users in the Nordics, as transfer speeds are impressive.

Jottacloud is evolving into an excellent cloud storage service--it deserves more recognition. Their Linux command-line client is straightforward and works well. Although it's not at feature parity yet with their Mac and Windows clients, it's getting there. Their web platform and Android apps are very intuitive and have some nice features, particularly if you're storing photos or sometimes sharing files to work on with other people. Datacentres aren't in the US, which is assuring. And perhaps most importantly, their pricing model is very attractive, especially if you compare to the likes of Tresorit, SpiderOak, etc.