Vossier - Fortnightly UI design briefs, straight to your inbox.
Octopus.do - Build your website structure in real-time and rapidly share it to collaborate with your team or clients. Start prototyping websites or apps instantly.
GoodBrief - A random generator for design briefs.
PowerMapper - Create visual HTML site maps and XML sitemaps for search engines of any web site quickly and easily.
Create Brief - Create a free shareable design brief. No email needed.
FlowMapp - FlowMapp is a UX planning tool for creating visual sitemaps and user flow.