This is a curated list of tutorials that will be updated over time. This is very much a work in progress, so send me an message if there's something you feel should be here that isnt.
It is mainly focused on games development, but a lot of the data is applicable for film and other areas. It is also broken down by specificity, instead of breaking it down by difficulty. As some of these series encompass various levels within themselves.
Ghost Recon Wildlands
This is a perfect example of how to use Houdini as a tech artist tool. This video shows really well how a small number of people can generate a large amount of content by systematizing open world development
Houdini 16 for Games - Scott Keating
Scott shows how you can still model in the viewport pretty interactively and have access to your history using the network editor. As well as a nice example of edge wear using the new boolean tools.
FX Adventures in Uncharted 4
This is a great article that I reference a lot. It goes through a lot of the Houdini use cases in Uncharted 4, namely destruction, flowmaps and vertex animation. (Note: They didn't use any of the H16 games tools)
Houdini for Game Dev Webinar with Mike Lyndon
Another video I reference to all the time. Mike shows a lot of really smart ways of using Houdini in production, like using flowmap data to generate GPU particles vector fields and making low res destruction look higher res with edge decoration.
Andreas Glad's SideFX Booth Presentation
This year was pretty amazing at GDC. One of the highlights were Andreas' presentation at the VFX Bootcamp and his accompanying booth talk. Here he shows some tricks he has done for quickly getting simulation meshes out of Houdini for use in game, and a super impressive cloud technique. If you have GDC Vault access his main talk is also highly recommended
Anastasia Opara's SIGGRAPH Presentation
Really great talk about how humans perceive patterns and how to make procedural assets not look repetitive through the use of layering in details. Some impressive tree modelling and highest level of procedural modelling.
Luis Garcia's Houdini for Indies
A one man game studio, Luis shows some of the tools he has built to speed up production on his Indie title. Another great example of what happens when an artist uses Houdini.
The first implementation of the Vertex Animation Textures tool, shows how far you can push realtime graphics.
Really great talk about how to tackle Houdini, motion graphics based, but great examples of problem solving
Gianny's Houdini Training
Gianvito Serra (grayolorin) is one of the most knowledgeable Houdini users out there. He distilled his Texas A&M Class into a series of Youtube videos that are required material for anyone getting started in Houdini
Kim Goossens' Houdini Training
Kim Goosen used to teach at NHTV in the Netherlands, a school that constantly pumps out amazing Houdini talent. He has put up a pretty extensive list of lectures online that is also required reading. Some of these are starting to get a bit old, but the content still holds up.
Marc Albrecht's Houdini for Non- Wizards
Great series for users that already have 3D knowledge, but are new to Houdini. Marc draws parallels between the Houdini and Modo and does a great job explaining the similarities.
Pluralsight (Digital Tutors)
John Moncrief and the rest of pluralsight does a great job explaining core concepts in Houdini. Always great to check back in and watch for newly released content.
Great procedural modelling tutorials that hit some of the common beginner questions.
Applied Houdini - Steven Knipping
Amazing series from an ILM veteran. If you're looking at using Houdini as an FX artist this is the course to watch. Really in depth breakdowns of how to use all of the different solvers to generate incredibly high quality results.
Mike Lyndon's - Herding Rocks - Procedural Animation in Shape Of The World
A great demonstration of how to problem solve in Houdini. Start with a good guess and then iterate until you find the right solution.
Mandatory watching, awesome course from this former DICE FX Artist. Great Pace and content.
Anastasia Opara's Lake Houses
Incredible procedural art done by Anastasia Opara and a great example of what you can get when you have someone with a good artistic sense using Houdini. Full tutorial available at her gumroad page
Procedural Rock Formations for UE4 | Saber Jlassi | Houdini HIVE at SIGGRAPH 2017
Really great talk by Saber on some nice Rock generation using Volumetric workflows. As well as some nice tips on generating fully procedural UVs using clusters.
MIX Training: Intro to Houdini Engine in UE4
Varomix has a ton of content on his youtube channel. In this video he goes through the basics of using the Houdini Engine Plugin for UE4
MIX Training: Particles Following a Curve
Another great video, which I followed myself to learn more about POPs for the Sprite examples. Shows how to do a simple effect where you generate particles from a piece of geometry and make it follow a curve.
Peter Quint's Vimeo Page
A treasure trove of intermediate/advanced training. Once you get past the beginner content and want to dig your teeth into something more challenging, check this channel out.
A talk I gave with Mike Lyndon at SIGGRAPH 2017. Covers the latest developments in the shelf tools including Motion Vectors and Games Baker
GDC 2017 Houdini 16 Games Shelf
This is an overview of the new tools that were created for Houdini 16 in the games shelf. Flowmaps, Normal Map COPs, and Vertex Animation Textures
Houdini For Games Webinar - Vertex Animation Deepdive
Deeper dive in the Vertex Animation workflows where we go from empty scenes into Unreal 4
Overview of lots of different applications of Houdini in UE4. Everything from Photogrammetry pipeline to placing Blueprints with Houdini Engine
Houdini For Tech Artists - CEDEC 2016
Introduction to the (then) new Games Shelf tools in Japan. Covers a bit of the scriptability of Houdini
GDC 2015 - Proceduralism and Automation at Certain Affinity
GDC Talk I gave back when I was using Houdini in production. Shows a couple of use cases on where we used Houdini to optimize our workflows.
Matt Estela's Wiki
Famous in the film world, this wiki is a goldmine for people learning Houdini. If you're interested in learning more about VEX, this is where you want to look
These videos tend towards the film side of things, so I'll put this under Misc. But the quality of the videos is too good to not bring them up. A couple of them are very much applicable to games.
Rohan Dalvi's Vimeo
These also trend towards the film side of things, but there is a lot of great content here. The hard surface modelling video in particular is incredibly impressive!
Really awesome website with loads of quicktips. Here's where I learn about Shift W and it blew my mind.
How to Animate a Cube in Houdini
Too good not to post here. Great to put away the fears that Houdini is "too complicated"