Cgforge – Pyro 2
http://www.cgforge.com/course/pyroii-sparse
Pyro II Flames & Sparse Pyro is a course designed to help you create beautiful looking flames. This course includes a wide variety of useful resources, workflow demonstrations, and scene files that are guaranteed to set you in the right direction when it comes to creating fire that looks great.
Be sure to visit Pyro I if you haven’t yet because this course assumes that you’re already comfortable with the knowledge covered there.