TrackDuck - Visual feedback for web design and development.
Ocean - A Community of designers sharing feedback
zipBoard - ZipBoard is a web-based visual bug tracking & issue tracking tool that helps developers, testers and project managers collaborate during website and elearning development.
VSCO Messages - A place for creative conversation
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Sidebar Webring - A collection of handpicked blog feeds focused on design