Interesting and Relevant Links
Heretic hunts and children's literature at Avakesh
Divrei Chaim is perplexed as to why one wouldn't choose to explain the Gemara in a way that doesn't involve scientific error. Be sure to read the comments! Also see Rabbi Josh Waxman's post in reponse.
Rabbi Josh Waxman also discusses the Gra's view of the earth being flat here and in a follow-up here.