An index of my own sites can be found here
Delta
Blues: Great big Voyager reviews. 
Trek Today: Star Trek news, plus polls and opinions
TrekArchive.com: Star Trek media collection
What the Trekkie saw: Good Australian reviews of Voyager, DS9 and other series.
The J Team: a cult dedicated to the worship of the Auburn Queen. Not as scary as it sounds. Mostly.
Absolutely Useless Voyager Page: Not useless at all, well-designed and interesting
47% Crunchy: A neat little Voyager site, with some funny fanfic and an attractive design
You Can't Do That On Star Trek: manipulated Trek pics (site currently missing, but they promise a return)
007 of 9: the Borg is not enough: the only Seven of Nine/Jeri Ryan fansite which doesn't leave me plotting the demise of an entire gender
Five
Minute Star Trek Voyager: hilarious 'compressions' of Voyager episodes.
Totally Kate: A slightly obsessive, extremely fascinating Kate Mulgrew fan site. Gasp at articles dating back to the 1970s! Gape at rare pictures! Laugh at bizzarre hairstyles!
The Official Jeri Lynn Ryan Homepage: Combines the best of the ORB and Totally Kate: great design, an article archive and lots of embarrassing pictures.
The Official Mark Harelik Homepage: A page devoted to the (mainly) stage actor who appeared in "Counterpoint"
The
Scarlett Pomers Page: The official homepage of the only child actor
I can tolerate.
The JetC Fan Fiction Index: More J/C fanfic than you can read in a lifetime.
The J/C Links List: when you've exhausted the JetC Fan Fiction Index...
ASC Index: the archive of fanfic from alt.startrek.creative.
The Janeway Index: an incomplete but growing index of the best Janeway fanfic on-line.
Project S31: fanfic about Section 31. I designed the site, and I'd love to have some feedback on it.
Relationshipper Station: a guide to relationshipper fanfic on the net.
Voyaging Through Fanfic: a list of some of the best Janeway fic sites on the net (Gloating: I'm listed!!)
1001 Voyager Nights: There aren't 1001 stories here, but it's still one of the best Voyager collections around.
The JetK Page: archive of fanfic based on "Counterpoint". Contains some fascinating offerings.
JetC~22: My pond. Possibly the craziest JetC pond around.
m. c. moose's Voyager Stories: Some of the longest, most involved fanfic I've ever encountered.
Rocky's Road: Janeway fanfic
Tricorder Readings: Home of the AU series "Enemy of My Enemy", which I read in one go between 10pm and 1am one Saturday evening.
Sacajewa: Suz's fanfic
Fan-Tastic Voyage: "Counterpoint"-inspired fanfic
The Voyager Coronary: A Voyager parody in 47 chapters.
JuPiter Station: A J/P fanfic archive. Also home to pictures, sounds and a chat room.
Monkee's Place: J/C, J/P and others. Mary's fanfic made it into "Strange New Worlds 3"
The Dark is Rising: A mammoth, though unfininished series
L. R. Bowen: one of the best J/C writers around, newly returned to the net after an extended hiatus.
Domjotter: great Trek satires
Kit Montana: the retired fanfic author's page. Wonderful stuff
EJ's Voyager Stories: J/C and general Voyager fanfic
august's archipelago of angst: bleak Janeway fic by August and other talented writers. Not for kids.
Fan fiction by Christine: Voyager and X-Files fanfic. Much excellence. (I'm fairly sure I've fixed the link)
Ragpant's homepage: excellent J/C fic
Counterpoint: the Voyager episode: an unfinished, but intriguing, 'novelisation' and expansion of "Counterpoint"
The Talking Stick/Circle Series: one of the best J/C series written
Star Trek Voyager: Lower Decks: fanfic about characters who don't appear in the main credits
unbound: Trek fanfic, among other things.
radiance:
Ellen M's fanfic
The Sunnydale Slayers: Reviews, fanfic, smiles.
The Angel Annex: More from the Sunnydale Slayers.
City of Angel: a fantastic Angel site, with full-spoiler reviews.
The Slayer's Fanfic Archive: Buffy and Angel fanfic. Currently going through a redesign, but worth a look.
Buffy Music Pages: site dedicated to the music in Buffy
The BtVS Writers Guild: Buffy fic site with great links
Angel Fan Fiction: fanfic archive for an Angel mailing list. No actual fanfic yet, but there are great links and an attractive design.
Addictive Stigmata: dark, angsty Spike fanfic, with a great design
Buffy Fan Fiction That Doesn't Suck: seems fairly obvious. Also has fan art.
Psyche: scripts and soundbites for Buffy and Angel.
Slayers Down Under: Australian Buffy club
Unconventional Relationshippers: Fanfic dedicated to the odder pairings
On the Crow Road: mostly, although not limited to, f/f fanfic. I recommend the "Summer Vacation" fics.
Slayer Pride: Buffy slash
Suffragette City: psychotic Faith fic
Sundown: Buffy and Angel fic
imjustsayin.net:
Jenny O's fanfic
A few online diaries and weblogs:
ditto.com: a graphics-only search engine.
The Onion: Satirical newspaper
The Anti-Banana Society: Dedicated to ridding the world of the demon fruit
Find Articles: an archive of articles from magazines, newspapers and journals
Flame Warriors: a guide to the participants in flame wars
Drew's
Script-o-Rama: index to scripts on the net. No Trek, but
a wide variety of other shows.