How to build a your own personal dropbox like service using a raspberry pi and some software called OwnCloud.
The instructions can be found here:
The Raspberry Pi is a great little cheap computer, but it doesn't have a lot of interfacing options to connect external peripherals. If you want a low-footprint solution that looks great sitting on the Raspberry Pi itself, DIYer Joe Walnes outlines...
Version 6.0 of NetBSD brings scalability improvements on multi-core systems, a rewritten disk quota system, a new packet filter and updates to several ports including ARM, PowerPC, Xen and MIPS.