Sander Chan, a gay Christian, has a useful series on homosexuality and the Bible on his blog The Joyful Anticipation.
Part 1: Sodom and Gomorra
Part 2: Leviticus I
Part 3: Leviticus II
Part 4: Leviticus III
Part 5: Romans I
Part 6: Romans II
Part 7: Romans III
Part 8: Corinthians and Timothy
Part 9: Creation Order
Part 10: Wrapping up the series
