Sherwood Smith's new fantasy series (Inda; The Fox; The King's Shield; Treason's Shore) has several very important gay characters and a culture that doesn't care about the gender of partners.

And a clarification of the Diane Duane entry: the series is called The Tale of the Five; the individual books are The Door Into Fire, The Door Into Shadow, The Door Into Sunset, and The Door Into Starlight.

- Kriz