As a former web developer, Free SF Reader can be a horrific site with poor navigation and rollovers which make me afraid to use my mouse.
As a sci-fi fan, the poor site design can be overlooked for the free treasure within!
Cases in point:
1) Mimsy Were the Borogroves by Henry Kuttner and his wife, C.L. Moore
Follow the link to hear part 1 of an audio recording of this amazing story as read by William Shatner.
2) An essay by Amy H. Sturgis, discussing possible reasons for the continued interest in the works of H.P. Lovecraft and J.R.R. Tolkien.