http://www.soapatterns.org/masterlist_a.php
http://www.designpatternsfor.net/Presentations.aspx
http://www.designpatternsfor.net/default.aspx?pid=38
Interfaces + Factory pattern = Decoupled architecture
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http://www.dotnetspark.com/kb/300-interfaces--factory-pattern--decoupled-architecture.aspx
