ArrayList, SortedList, HashTable, Stack, Queue
http://www.codeproject.com/Articles/31640/Basics-of-NET-Collections-in-C
http://www.dotnet-tricks.com/Tutorial/csharp/U08E301212-Difference-between-Generics-and-Collections-with-example.html
http://geekswithblogs.net/BlackRabbitCoder/archive/2011/06/16/c.net-fundamentals-choosing-the-right-collection-class.aspx
http://www.dotnetperls.com/collections