The wikispaces were dropped a while back; the new chess programming wiki is at chessprogramming.org<p>The biggest gains (from my experience as a developer of WyldChess) are from improving move ordering, heuristic search pruning and position evaluation parameters.<p>Move generation speedups are relatively low yield because most of the time is spent in evaluation.
If you want to build something like a chess AI, but you want to produce something that beats the current state of the art, we could always do with new computer engines for Isopath[0] :)<p>[0] <a href="https://isopath.jes.xxx/" rel="nofollow">https://isopath.jes.xxx/</a>