Heads Up Display (lslwiki)
Comprehensive list of scripts in the scripting forum (osgrid)
Single NPC AI Script (avination)
Basic A* Pathfinder (secondlife)
Linked-Tier Hierarchics (secondlife)
qLab LSL Library v0.0.2 (qarl)
LSL to JSON (secondlife)
SLERP Spherical Linear Interpolation (secondlife)
Tutorial: Robotics (lslwiki)
Flight Engines (scripts) (google)
Pandorabots Chatscript (wikidot)