I was perusing some squash sites and came across one that I am going to add to my links section of our Science of Coaching Squash Blog: TotalSquash. I try and list only “high quality” links on this blog. There is a paid section (which I did not investigate) but there is also an “open” section which is free: Total Squash.
They have an interesting take on a number of topics (“Return of Serve Chess”, “Traffic Light “T””, etc. and so I think the site is worth a visit!