Invision - Prototyping and collaboration for design teams
Quoteplay - A tiny app that sends you one startup quote a day.
Marvel - Turn sketches, mockups and designs into web, iPhone, iOS, Android and Apple Watch app prototypes.
Startup Notes - Most actionable advice from each Startup School speaker
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.
Mattermark Daily - A curated newsletter of blog posts from investors & founders