Tahoe-LAFS is a Free and Open cloud storage system. It distributes your data across multiple servers. Even if some of the servers fail or are taken over by an attacker, the entire filesystem continues to function correctly, preserving your privacy and security.
Don't spend your time downloading specialty software for each file type you want to open. With Free Opener, open 80+ file types like Microsoft® Office, Adobe® PDF, music and video files with one application.
CKAN is an open registry of data and content packages. Harnessing the CKAN software, this site makes it easy to find, share and reuse content and data, especially in ways that are machine automatable.
Twipler is an Open Source Twitter web client written in ASP.NET.
The aims of the project are
create a Twitter Web client
make the client themeable and customisable with complete CSS/HTML control
provide additional functionality (mutual followers, block by rule etc)
filter and organise incomming tweets