Chilehead Software

From the User Experience LinkedIn Group:

Shyamala Prayaga posted: Lets create a repository of all UI design patterns at one place. This will help us if we need refer any patterns from one repository rather than googling around.

To start with here are some which I know
http://ui-patterns.com/
http://uipatternfactory.com/
http://quince.infragistics.com/UX-Design-Patterns.aspx
http://developer.yahoo.com/ypatterns/
http://www.welie.com/patterns/
http://www.designingsocialinterfaces.com/patterns.wiki

After 200+ replies, I liked Saker Ghani's suggestion to make a Google spreadsheet to gather all of the thread links. I'll start my own collection here:

http://konigi.com • Federico Pizzutto • Konigi is a nice resource too
http://www.dribbble.com • Christian Müller • not exactly a library but useful
http://littlebigdetails.com • Christian Müller • also very good

Shipra Bisht • Mobile UI Design Patterns:
http://sixrevisions.com/user-interface/mobile-ui-design-patterns-inspira...

Marjorie Lazaro • A few more useful:
http://www.smileycat.com/design_elements
http://www.uipatterns.net
http://box.mepholio.com
http://www.designsnips.com
http://creattica.com/