My most frequently updated websites include:

Bildungsroman
Blog location: http://slayground.livejournal.com
Archive location: http://www.slayground.net/bildungsroman
Mission: To share my love of books. The Bildungsroman blog and accompanying website are packed with exclusive author interviews, book reviews, booklists, and more.
Since: 2006

The Official Christopher Golden Website
Location: http://www.christophergolden.com
Christopher Golden is the best-selling author of the Body of Evidence series; the Prowlers series; The Boys are Back in Town; Strangewood; Straight on 'til Morning; various novels and comics in the Buffy the Vampire Slayer/Angel world
Client since: March 1999
Subsites: Poison Ink, Soulless, The Secret Journeys of Jack London, The Waking

The Official Thomas E. Sniegoski Website
Location: http://www.sniegoski.com
Thomas E. Sniegoski is the author of the New York Times bestselling series The Fallen; the OutCast series (co-written with Christopher Golden); Billy Hooten, Owlboy; A Kiss Before the Apocalypse and other Remy Chandler stories
Client since: 2001
Subsites: The Fallen, Owlboy, Remy Chandler novels, The Brimstone Network

Readergirlz
Location: http://www.readergirlz.com + http://readergirlz.blogspot.com
Founders: Janet Lee Carey, Dia Calhoun, Lorie Ann Grover, and Justina Chen, authors
Purpose: Celebrating gutsy girls in fiction, discussing books with readers, and encouraging girls and women to be active in their communities
Client since: 2007
Note: Flash graphics created by another party The Essence of Amber
Location: http://www.amberbenson.us
Amber Benson is known for her work as an actress (Buffy the Vampire Slayer), a screenwriter and director (Chance), and an author (the Death's Daughter novels).
Client since: 1999
Subsites: Death's Daughter, Amberholics

I have designed and maintain websites for many authors and editors, including:
Jen Calonita
Liz Gallagher
Kristen Tracy
Sara Crowe
Dana Reinhardt
Eric Luper
Alexa Martin
Jennifer Roy
Elizabeth Zechel
Jennifer Lynn Barnes
Robin Palmer
Taylor Morris
Harvey Klinger
Lara M. Zeises/Lola Douglas
Jacqui Robbins
Kim Baccellia
David Lampson
Tanita S. Davis
Amy Goldman Koss
Jack Rogan
The Bent Agency
Jennifer Prado
Realm Lovejoy

I have also designed and maintain sites related to books, including:
Poison Ink by Christopher Golden
Soulless by Christopher Golden
The Secret Journeys of Jack London by Christopher Golden and Tim Lebbon
The Waking by Thomas Randall
The Fallen by Thomas E. Sniegoski
Owlboy by Thomas E. Sniegoski
A Kiss Before the Apocalypse/The Remy Chandler Novels by Thomas E. Sniegoski
Crimes of the Sarahs by Kristen Tracy
Death's Daughter/The Calliope Reaper-Jones Novels by Amber Benson
So Punk Rock (and Other Ways to Disappoint Your Mother) by Micol Ostow & David Ostow

Additional webdesign clients include:
Unintentionally Awesome
Run It by Alexa
Dana Robinson

Sites I did not originally design but I now maintain include:
Laurie Stolarz

Etcetera
My Amazon Reviews
My Amazon Wishlist
My LiveJournal
My Webdesign Company
My Website Provider

Street Teams and Discussion Lists
Amberess - Amber Benson
Wicked Street Team - Christopher Golden

Message Boards
The Essence of Amber Forum