I’ve decided to expand my beginner’s Houdini knowledge and checked a few knowledge bases.
The official SideFX’s Houdini website contains thorough information and tutorials. They’ve created nice pdf documentation and videos. I’ve looked some of the modeling tutorials and implemented some of the modeling techniques in my work piece.
Another useful database I found is DigitalTutors.com where they have nice HD 3D modeling tutorials. (also recommended by a colleague of mine)