The Microsoft-hosted PatternShare community brings together information on software patterns organized by wiki inventor and now Microsoft employee Ward Cunningham.

PatternShare uses the liberal Creative Commons Attribution License.

Thanks Ward Cunningham and thanks Microsoft!

Although it predates the availability of Creative Commons licensing by many years, I would be remiss to not recommend Cunningham’s still active Portland Pattern Repository Wiki, which I suppose could be characterized as the wild and woolly counterpart of PatternShare.