See the improvement offered by the new Voronoi modifier, versus the old Fragmenter, in the new update for RayFire.
Houdini Engine for Autodesk Maya
SideFX have released Houdini Engine for Maya, with 3ds Max and Unreal versions coming soon.
3ds Max Particle Flow Tutorial - Barn Tornado
Pete Draper has made an 11-part tutorial on creating a tornado using Particle Flow in 3ds Max.
ThinkingParticles 5 - Review
Find out how fares ThinkingParticles 5, Cebas' particle plugin for 3ds Max in this in-depth review.