Favorite Cel Collection on line (in no particular order)
 

HD Cel Image Gallery	Orange Road
Jerry's Anime Cels	Yann's cel Gallery
Brian's Animation Gallery	Thierry's Cels Gallery
Zefyr's Celpage	Melissa's Anime Cel Gallery
The Tralfaz Cel collection	Anime Online
Professor Atomo's Cel Gallery	Larry's Cel Gallery
Micke Gallery	Pure-child hoops
Anime Jewel	Gdpj Gallery
Anime Cel Collector	130% Mad Crazy Cel-ery
Oion Gallery	Sato Cel Gallery
Keys' Little cel Gallery	Ryen Cel Gallery

Just about every other cel site on line can be found using these three sites:

Anime cel webring
Internet Guide to Anime Cels -  not updated anymore
Rubberslug - A lot of cel galleries have taken up residence here

Cel Dealers

Internet Guide to Anime Cels - Evaluations with links - not updated anymore
Cels.org - Listing with links of most sites and when they are updated
Delta Anime  - A place doing original cels from sketches of non-cel using shows

Cel info and Guides

Animation production info - Yann's and Brian's sites
Yann's Anime Cel Forum - Light Version and Nick's Anime Cel Forum
#Anime-cel - Information on the IRC I hang out at way more than I should 
Information on doing fan cels - Darkside Millenium
Information on doing fan sketches - Cloud's Home Page or direct link
Place to get cel bags from - HEIKO Inc
Dick Blink Art Supplies - Great place to get fancel supplies and cel books
Place you can get an art rider for your cels -  Collectors Insurance Agency
Cel restoration work - S/R labs (never used, but supposed to be good)
Private individuals doing cel restoration work, mention me - Andi Kottka
Japanese to English web translation software - Amikai Translation page
Yahoo Japan - Make sure you know what you are doing before you bid
Deputy Services - Sato, Rinka, and Celga
Links to my Ebay auctions, Ebay feedback, Yahoo Japan feedback, and Rubberslug cel pages

Research Links

Internet Grateful Med - Free on line database for journal searches. 
National Center for Biotechnology Information - Sequence and genome analysis
Blast searches - Comparision search of nucleotides, protein, or RNA
Aids Reagent Repository - Location for acquiring HIV research related items
Medscape HIV/AIDS - Current info on research and activity in HIV field
HIV Sequence Database - Comparision search of only the HIV genome
Swiss Model - Free modeling program for looking at crystal structures
Harvey lab - Place where I do my molecular modeling
RCSB Protein Data Bank - Place for getting published crystal structures
Biosupplynet - Place for doing comparitive price shopping for lab supplies
Integrated DNA Technology -  A great place to order your DNA primers from

General/Fun Links

HTML Goodies - HTML information guide and web site building guide
Anime on DVD - Information when various anime are coming out on DVD
Anime News Service - General Anime news
Anime Web Turnpike - General guide to finding anime related anything
Cartoon Party - A lot of the pretty pics from a number of series
Despair Inc - Motivational words we can always utilize
Anime Physics - The underlying rules that govern the Anime Universe
Fan Art by people who do really impressive work - Cloud's Home page with a nice drawing tutorial  and Omoide Love Evocation
Paypal and c2it - Online payment services, c2it is pretty good for wire transfers