Péricles Júnior is building up an awesome collection of blueprints on Pinterest.
Blender Suco published a HUGE list of interesting resources for Blender users.
AssistCG.com have produced a whole slew of useful node groups that you can append into your projects to learn about compositing and speed up your work. The library includes node groups and files for color correction, rotoscoping, keying and other video compositing activities. They’ve also produced a PDF guide on using the node setups provided.
We reported on the Carnegie Mellon University’s motion capture library before. Back then you needed to manually convert the files to the .bvh file format to import them into Blender. Jennifer Sumbu Longe has republished the entire collection and did the conversion for you.
Brendon Murphy aka Meta-Androcto has created script tool-kits where you can downloadÂ scripts by category.