Yes Willa the original article is around somewhere as James asked me to take backup just before the forum changed. I will look it out, maybe up date it a little and post it back on here.
There are several coating available for concrete. Painting with a specialist epoxy pool paint is a good one but I would steer well clear of others like chlorinated rubber paints or similar. There are several spray on coatings that have to be applied by contractors mainly because of the cost of the equipment. These range from polyurea coatings that make a tough liner type coating or an interesting finish looking like a coloured stone effect, known as aquaBright.
Tony, I am still writing my book on pools and trying to make it an interesting read is the hardest part, sound and sensible could have you asleep in minutes! Edgy and controversial makes it interesting so you follow what you need to.