Atlantis Revealed is a well presented website(a) that offers an overview of Atlantis theories. It can be read in English or Italian which taken with some minor spelling mistakes suggests an Italian author. Although it gives an objective airing to many theories it clearly endorses Jim Allen’s contention that Atlantis was located on the Altiplano of Bolivia (see FAQs).
The site is attractive but navigation can be difficult for newcomers.
(a) https://www.atlantisrevealed.com/main.asp?language_=en (offline 17.07.14)