This is a compilation of the resources and references suggested for Shrike and FPGA in General across the web.
NandLand
Learn FPGA - B Levy
Fpga4Fun
SutherLand Papers
FPGACPU
ZipCpu
Project F
Verilog Pro
AISC WORLD Verilog Tutorials
Lawrie FPGA Tutorials
Lut4
Ulx3s-Project
TinyFPGA-Project
icebreaker-Project
pico-ice
ULX3S
TinyVision
1bitsquared