TinyCat - The online catalog and integrated library system for tiny libraries, powered by LibraryThing.
Invision - Prototyping and collaboration for design teams
DSpace - DSpace open source software enables open sharing of content that spans organizations, continents...
Marvel - Turn sketches, mockups and designs into web, iPhone, iOS, Android and Apple Watch app prototypes.
Koha - Koha is the first free and open source software library automation package (ILS).
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.