I wish I could upvote twice.
Lamport's writing is _very_ accessible ( at least to this college dropout ) and I really enjoyed reading Time, Clocks and the Ordering of Events. Paxos Made Simple is another favorite: http://research.microsoft.com/en-us/um/people/lamport/pubs/p....
* The stable marriage problem (D. Gale and L. S. Shapley: "College Admissions and the Stability of Marriage", American Mathematical Monthly 69, 9-14, 1962.), http://en.wikipedia.org/wiki/Stable_marriage_problem
Seconded; imo this paper is a pretty good introduction to the basic concepts and motivations of information theory even today. Impressive for a 63-year-old paper.
If you want a reminder of what a stud Shannon was, remember that his masters thesis (A Symbolic Analysis of Relay and Switching Circuits) proved that you could use boolean algebra and boolean arithmetic to analyze the circuits and relays used in the telephone networks at the time. It then went one step further and proved that the inverse was also true, you could use relays and switches to perform boolean logic operations -- this was the key insight that made digital electronics possible. Not too bad for work that did not even get him a Ph.D. :)
Ouch. Really sorry about that. Wish i could delete it. I would also add any paper by David Deutsch on quantum communication like this: http://xxx.lanl.gov/pdf/quant-ph/9906007v2
Time, Clocks and the Ordering of Events in a Distributed System (seminal paper which won various awards): http://research.microsoft.com/en-us/um/people/lamport/pubs/p...
That link actually takes you to a complete list of Lamport's works.