Alvin sent me the below links to the two slide decks that he used at our last meetup on MongoDB. You can find many more slides and videos on the MongoDB and 10gen websites.
Begin forwarded message:
From: Alvin Richards <[address removed]>
Date: September 15,[masked]:45:26 GMT+02:00
Had a great time last night talking to the folks at the meetup, and thanks for the bottle of wine!
There was a request for the slides.
Let me know if you need anything else.