Argorha Pathfinding is an algorithm which permit you to find your way into a polygon soup ( 3D world ) efficently by precalculating a system of sectors and portals. AStar included. Demo in Download section, code on SVN.
Hampton is an application of genetic programming (GP) to the pathfinding problem, first applied by Rick Strom. This project was the focus of a gamasutra.com article, by Strom, on GP and pathfinding.