Collection of 2D Cutting Software

http://cutting-optimization.optimalprograms.com/
http://www.woodweb.com/Resources/RSSoftwareConnection.html
http://nesting-software.com/downloads/
http://www.devx.com/dotnet/Article/36005#codeitemarea
Discussion:
http://answers.google.com/answers/threadview/id/141254.html
http://users.cs.cf.ac.uk/C.L.Mumford/heidi/BinPacking.html