Welcome to Bookcrossing. How nice that you found us. You have the right idea about releasing books. But there is so much more to BC. Just have a look around the Fora and if you have any questions, this is the place to ask. Enjoy.
Welcome! I think LFLs are very handy places to release books, since they'll be protected and people who enjoy reading will visit them. Although it seems that the catch rate isn't as high as in other places, but I keep hoping to hear from them and assure myself that someone's enjoying them :)