Attached are some various swimming links I've collected over time.
Stop spinning & swim faster. Focus on reducing windmilling and swimming with a front quadrant stroke.
Common mistakes for freestyle swimming.
Basic side breathing technique.
Improving body balance with drills.
Improving stroke power with drills.
Body position and stroke, with Andy Potts.
A really good video from Swim Smooth, using slow motion analysis. Targeted females with shorter arms and high stroke rates. The stroke guides and drills mentioned in this video are available for Tri2Max clients.
Swimming stroke technique with Dave Scott & Swim Smooth.
Using the Finish Tempo Trainer.
Doing a ramp test to determine stroke efficiency sweet spots.