Maybe, but the internet also makes people lazy, plus there's too much useless information around. A book (or scientific paper etc.) will tell you where different chameleon species are from, and should give you a much wider view on them as a group. Some people tend to just buy a few chameleons and then going to a forum to figure out what species they actually bought and how to care for them (if they are able to do so at all). If you own and read proper books/papers, you should be able to determine the species before you buy an animal, and know something about environmental factors in the wild. For someone with basic reptile husbandry knowledge (which in my opinion you should have before taking on the challenge to keep chameleons), that is sufficient to start with. A forum offers many useful tips and tricks, as well as some info that is very difficult to attain in the wild (such as incubation temperatures and vet treatments like you mentioned). But how do you separate useful from useless advice if you never did some research into an animal's background?
