These are the places where I post:

http://lotr.adultfanfiction.net/
http://avia.silverbloom.net/mirror/
http://ressandfin.queencheetah.com/
http://www.libraryofmoria.com/
http://www.melethryn.net
http://community.livejournal.com/libraryofmoria/
http://community.livejournal.com/ardaslash/profile
http://community.livejournal.com/erestor_library/profile
http://community.livejournal.com/erestor_slash/profile
http://community.livejournal.com/glorfindel_fans/profile

hope this helps binky x (may I friend you?)