I spend some of my time working with FPGAs - exclusively Xilinx parts at the moment - and have documented a few interesting points about them here.
Cheap FPGA Development Boards - The results of my endless search for cheaper stuff.
Digilent Atlys resources - Guides and code for using peripherals on the Digilent Atlys board.
Xilinx MIG Tutorial - A guide to configuring, simulating and synthesising using the Xilinx Spartan-6 Memory Interface Generator and ISE.
Numato Lab Elbert Review - A review of the Numato Lab Elbert Spartan 3A FPGA Development Board.
Avnet Spartan 3A Evaluation Kit - Some tips for this cheap and nice but discontinued board.