ICollectionView and CollectionViewSource

Very good sources for these two:

http://marlongrech.wordpress.com/2008/11/22/icollectionview-explained/

http://omniscientist.net/?p=187

http://bea.stollnitz.com/blog/?p=387

http://msdn.microsoft.com/en-us/library/ms752347.aspx#binding_to_collections

http://stackoverflow.com/questions/1633717/why-sorting-using-collectionviewsource-sortdescriptions-is-slow

http://www.dotnetfunda.com/articles/article1000-simple-grid-implementation-with-icollectionview-in-wpf-.aspx

http://waxtadpole.wordpress.com/2009/11/04/wpf-setting-default-sort-order-for-datagrid-without-using-a-static-resource/

http://groups.google.com/group/wpf-disciples/browse_thread/thread/5ccadae6fcfa01e1?pli=1

I will post someday my own description