A list of some good pattern respositories:
| Portland Pattern Repository | http://c2.com/ppr/ |
| Core J2EE Patterns | http://java.sun.com/blueprints/corej2eepatterns/Patterns/ |
| Enterprise Integration Patterns (from the book by the same name) | http://www.eaipatterns.com/toc.html |
| IBM's Patterns for e-business | http://www-106.ibm.com/developerworks/patterns/ |
| MSDN Solution Architecture Center | http://msdn.microsoft.com/architecture/ |
| Microsoft patterns & practices | http://msdn.microsoft.com/practices/ |
| .NET Patterns Community | http://gotdotnet.com/team/architecture/patterns/patterns.aspx |
| TheServerSide Enterprise Java Patterns | http://www.theserverside.com/patterns/ |
| <soaprpc/> SOA and Web service patterns | http://www.soaprpc.com/patterns/ |