Needle Tatting for Beginners through Pictorials. Each gradual step takes you through the basics & how to make rings only, ring & chain, joining, etc. etc. Accompanied by many beautiful motif patterns !
Domocredix - cro-tat - crochet tatting with beads
How to Make a Folded Join in Tatting video from Tatted Treasures blog. I always have to refer back to this since I am a beginner.