I put together a short list of MPLS VPN-related terms; I'm positive you'll find it handy if you've recently entered this exciting technology area. With copious help from our marketing department I was also able to produce a PDF version of the same document that you can download from the CT3 wiki.
Ivan Pepelnjak, CCIE#1354, is the chief technology advisor for NIL Data Communications. He has been designing and implementing large-scale data communications networks as well as teaching and writing books about advanced technologies since 1990. See his full profile, contact him or follow @ioshints on Twitter.