A blog post from Chris Bowen has been making the rounds. It contains quite a few technology posters available. Here is a short sampling...
- .NET 3.5 Namespace
- Exchange Component Architecture
- Visual Basic 2008 Keybinding Poster
- Visual c++ 2006 Keybinding Poster
- Visual C# Keybinding Poster
- and many more...
Check it out at http://blogs.msdn.com/cbowen/archive/2007/12/09/got-tech-posters.aspx