The Big Block of Cheese: A staggeringly extensive archive of West Wing fanfic.
The RS-X Archive: An archive of RPS tending toward the rare and obscure.
Stories: A small but delicious archive of Sex Pistols slash fic.
Beautiful Games: A football (soccer) RPS archive spanning every professional league.
Obsessive Tendencies: A closed-group ring of talented Popslash writers.
What Makes the Desert Beautiful: A CSI slash archive devoted to Stokes/Sanders.
Germadian Love: German + Canadian = Germadian. A Nash/Nowitzki archive.

You Guys Are Just Fucked: Fanfiction by Sabine, who writes, among other things, some of my very favorite West Wing fic, as well as a truly lustworthy Band of Brothers one-shot.
A Girl Needs a Gun These Days: Fanfiction by Jane St. Clair, who writes more fandoms than you can shake a stick at, including the West Wing, X-Men, X-Files and Popslash.
Empty Space: The appropriately minimalist webspace of Lil_Neko, whose experimental style brings to life the Boondock Saints, 28 Days Later, and a host of other rare fandoms.
need $ to build an ark: Fanfic by the world-famous Candle Beck, heavy on baseball (as it should be) with forays into FPS, including an extensive West Wing collection. Clear your week before you enter--it's hard to tear yourself away.
Blue Green Gray: Nullsechs' fanfic archive. Band of Brothers fic that will make your head spin, as well as other fandoms.
Hotel Gypsy: Popfic, Sports Night, CSI--what's not to love? Part of Obsessive Tendencies.
BitchWill: The undead princess's fanfic archive. Many rare fandoms, including some fascinating Murder By Numbers fic, the only Igby Goes Down fic I've ever seen, and a link to her popslash archive.
Through a Door: Guilt-inducingly good popslash, HP, Queer as Folk and more. Part of Obsessive Tendencies.
Come Around for Tea: Bernie's hockey slash archive, home to some of my favorites, "Stratagems" and "Border Country".
Perchance to Dream: Home to Frala's vast collection of hockey slash. Sweet, smutty, and sometimes heartbroken...just as we like them.
Two Minutes for Slashing: Hockey slash from the great Kate, the only person who could write about naked Steve Staios and make me want more. That's talent, kids.
Mae's Hockey Fan Fiction: Mae's such a baller, she doesn't even need a name for her archive--the stories sell themselves. I had the unequaled pleasure of being the first person to read her very first fic, and four years later she's still taking my breath away.
Tammy's Fics: Tammy is another writer who's too cool for an archive name--they're sassy, these hockey girls. Pretty much everything on her site will make you 1) want to cry, 2) want to squeal, and 3) want to push her because she's so good. But I wouldn't, 'cause she'll totally cut you in the parking lot.
Red Planet: The home of Abby's hockey fic, which will make you wish it was legal to handcuff people to their keyboards. I'm still lobbying for that change.

The Boys of Summer by Luna and k: Nags Head, North Carolina, had one cheesy miniature golf place, and you had to drive to get there.
All Who are Hungry by Jane St. Clair: They're going to take Sam out and get him drunk and put him in bed.
Four Speeches and a Funeral by Anna-Maria Jennings: The night before, he was a wreck.
The Largest Colonial Building in the World by Sabine: In the summer of 1970, Uncle Roger, who wasn't Jewish, bought the first Chevy Suburban in Connecticut.
Women by Sabine: These are the men. Part 1 of 3 of the "Statesmen trilogy".
Men by Sabine: "God give us men. The time demands / Strong minds, great hearts, true faith, and willing hands." Part 2 of 3 of the "Statesmen trilogy".
Boy by Sabine: It's not the fall that kills you, it's the sudden stop. Conclusion to the "Statesmen trilogy".
Spring Break by Anne Higgins: The story of how Josh and Sam met.
The Thinner the Skin by Jane St. Clair: Of couches and expensive suits, with some mention of madness.
Three Times by august: So now he's a thirty-something, and he's poweful and he's taken to occasionally thinking about Sam.
Trust In the Difficult by Calligrafiti: Sam balled up the socks and slam-dunked them into the hamper. Josh had been out for about two hours, and already he felt himself being replaced.
Turning Myself Into You by Jae Gecko: The foundation of Jae Gecko's epic Sam/Josh universe. First written in 2000 and later rewritten; a pity for those who never got to read the first version.