UI Movement - The best UI design inspiration, daily
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.
UI8 - Carefully crafted UI design assets
VisualSitemaps - Autogenerate visual sitemaps in seconds.
UI Garage - Specific mobile and web design patterns for your inspiration
PowerMapper - Create visual HTML site maps and XML sitemaps for search engines of any web site quickly and easily.