WD Stack - Curated resources for frontend designers/developers
Design Hunt - Curated design inspiration for everyone
PromoteProject - PromoteProject is a site where you can showcase your startup, blog posts, software, games and books.
Designer Mill - Collection of Best Free Design Resources
The Starter Kit - Curated resources for web developers and visual designers
Webframe - >800 web app screenshots for inspiration on your next app 🎉