I've recently started using Houdini coming from a Grasshopper/Rhinoceros + Architectural background and quickly I realized it's such a great tool for parametric & procedural design for modeling some geometrical shapes which sometimes GH is not good at. I'm planning to post tutorials for Houdini to following Facebook page and Youtube channel as my note how to make geometries I'm interested in.
[Facebook Page]
https://www.facebook.com/ParametricProceduralHoudini/
[Youtube Playlist (Fast ver.)]
[Youtube Playlist (Slow ver.)]