Here is a collection of video tutorials contributed from Kerkythea users

Blender Tutorials by Alvaro F. Celis

Blender UI tutorial and customization

Basic Blender operations, mesh creation, move, rotate, scale  

Blender scene creation, materials and exporting

Importing into KT and basic scene setup for rendering

Conclusions

Rendering Realistic Water by Nick Burgmeijer

Watch the video tutorial

Download the example scene