The list author says: "In our family, there is a compulsion to make jam each year, regardless of whether we have grown anything that needs preserving or not. In any case, jams make great gifts -- better to bring to a dinner party than a bottle of wine. You can get all the equipment you need on Amazon. As to the fruits, you are on your own. But if you live in the SF bay area, I do suggest Berkeley Bowl for that. I have not included a book here, because the best one (Ball Book of Home Preserving) seems to be out of print."
"This kit includes the basics -- funnel, lid lifter, tongs, jar wrench. The only concern is that plastic parts tend to melt in boiling water, so if you will be using these tools a lot, more durable items might be worthwhile. However, this is an inexpensive kit for when you are starting."
"For boiling jars, I recommend a large, glass top stockpot like this one. (I bought a different brand, but close enough.) You can also get a special pot for jams, but this will work as dual duty for soup."
"A canning rack is useful to keep your jars from hitting the bottom of the boiling pot, to avoid cracking. But be sure the rack you choose fits your pot. Alternatively you can use a vegetable steamer as a platform. In my experience these racks don't work as well in practice as one might wish, because the jars tend to roll around during boiling."