SMRC Award Winning Fics: http://smrc.smfanfiction.net/
A subsite of SMFanfiction.net: http://smfanfiction.net/

UFO Award Winning Fics http://www.dotmoon.net/awards/
Part of dotmoon.net; multifandom for SM is well-represented: http://www.dotmoon.net/portal_top.php

SailormoonFanfiction.com: http://www.sailormoonfiction.com/
Contains the (Satan recommended) story "Fire" by Lois Fogg

Sailor Moon Fanfic.com: http://www.sailormoonfanfic.com/

The Best Sailor Moon Fanfiction.net: http://www.lethesbanks.com/BestFanfiction/alphabet.htm
I rescued what I could of this archive from Archive.org, and it is hosted on my webspace now. If you have problems with it, contact me.

TVTropes Recommended Fics: http://tvtropes.org/pmwiki/pmwiki.php/FanficRecs/SailorMoon
Face it -- tropers know their stuff, and they know when something's fresh and new. These will not be your "standard" fanfic pieces. (DK fans, "Rubies in Zoisite" is on this list as of this writing. Somebody nominate some Soylent Green stuff now, eh? ^_^)

The Spiffy Sailor Moon Page: http://www.immora.com/spiffy/otherfanfic.html
Much overlap with BSMFN, but that merely confirms they're great stories, right? ;)

The Fic Bitch http://ficbitch.wishing-blue.net/goodstuff.php
You'll see some overlap here, again. Her commentary adds a little extra spice to all those other fic blurbs you read elsewhere.

The Best Usagi and Mamoru Stories http://www.usagiandmamoru.com/crystaltokyoreview/crystalbest.html
Just what it says on the tin.

The Prime Selection http://community.livejournal.com/exceptional_sm/
An older fic rec LJ community.

Recommended Reading http://www.freewebs.com/heavenlypearl/reading.html
Recs in several fandoms other than Sailor Moon by Heavenly Pearl/Yumeko.

Crash and Burn http://ficrecs.lunap.com/smoon.html
Mostly some romantic recs.

Faineant Fanfiction Recommendations: http://faineant.blogsome.com/category/sailor-moon/
Some interesting crossovers...

Fleeting Fancies: http://fleetingfancies.nokoru.net/sailor-moon-fanfic.html
It will be interesting to see if she's pickier than I am about "polished" stories. she seems to gripe about that often!

Sailor Moon Fic Recs http://edmondia.nocturnalsoldier.org/SMrecs.htm
Specifically for manga and shitennou centered stories.