This is a clear article which argues that the most effective way to train VO2 max is low intensity, high volume training.

Interview with founders of two Parkrun USA groups.

Cross sections of several models of running shoes.

A calculator which uses the result of a recent race to "generate training paces, race prediction, with adjustments for temperature, body weight and altitude. This calculator works by estimating your V̇O2max and using that to predict your race times and training paces."

It's a shame Jack Daniels requested to have the vdot calculation removed from this calculator in an attempt at commercializing his research to the detriment of the wider running community.