User Interface Design Best Practices & Inspiration: UI Pattern Factory
UI Pattern Factory is both an user interface design pattern library and UI gallery where it is possible to find the best practices, get inspired, and share your solutions with others.
The website is mostly focused on web-based business applications & shares patterns like:
UI Pattern Library is also a place where you can ask & vote for new pattern ideas in their forum or add new images to the currently published ones via Flickr.
Website: http://uipatternfactory.com/