Emma-related links. There aren't many! After scouring the Interweb, this is the entirety of what I've come up with.

IIchan Translation Group - Scanlators/subbers of the Emma anime and manga.

AmazonMandy's Place - Wow. Just, wow. Comics, art, cosplay, and more, including a genuine Emma cosplay.

Crumpets and Corsets - A site dedicated to in-depth explanations of the historical references in Emma.

de-illusion - a fan's site; includes Hakim fanart.

LiveJournal Community for Emma fans.

MORISATO SPECIALIST MAID AGENCY - Fansite for maid anime in general.

Fanfiction:
In Our Rajah's Service - A story about Hakim's girls, with rich background and spot-on characterization.
Old Habits - Touching one-shot in which Emma adjusts to her new role and William is sweet.

Wikipedia entries:

Victorian Romance Emma

Kaoru Mori

Official sites:

Kaoru Mori's website - the creator's site; in Japanese. Pretty art, tho.

Eikoku Koi Monogatari Emma - Official Japanese site for the anime.

CDJapan.co.jp - shopping for Emma discs.

Information/summary/review sites on Emma:

Anime Secrets

Anime News Network

AnimeNfo.com

Anime Recommendations Database

Animefringe

Miscellaneous bits and pieces that I've collected:

Anime screencap gallery on Yahoo! Photos

Emma doll on LJ community

Emma sketches on LJ

Hakim-themed icons on LJ

Newtype article from April 2005, on LJ

Sheet music on LJ

Colorbars on LJ

The overly complicated little tea-clock machine William bought actually exists.

Mind Your Manners!, a Victorian-era game from the McCord Museum