Tips.how - A place to share small tips on any topic
Invision - Prototyping and collaboration for design teams
Muzli - UI/UX and Design Inspiration Chrome Extension
Marvel - Turn sketches, mockups and designs into web, iPhone, iOS, Android and Apple Watch app prototypes.
Material Up - Curates the best of Material Design inspiration, tools and freebies.
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.