Here are some of my favorite links.  Check them out if you have the time.  If not, check them out anyway, dammit.  You'll thank me later.

Outside FurNation:

AltaVista - Your basic search engine.  This is just the best one.
Amazon.com - My favorite store in the world.
Barnes & Noble.com - If between Amazon and here you can't find the book you're looking for, you ain't gonna.
Digital Blasphemy - Great CGI bitmaps to use for wallpapers and stuff.  Check it out.
The International Wolf Center - A great place to learn about my favorite animal.
Furry Pleasures - An entire archive of erotic stories involving furry characters.
Hotmail - Get your free e-mail.
Mia's Furry Archive - Probably the largest collection of furry stories on the 'net.
The Sawtooth Pack - Adopt a wolf!
Sierra - Makers of the greatest games of all time.
The Weremoon - A writing site run by my former mate, Kylee.  Very dark stuff here, but awesome.  Some of my poetry is posted here if you want to see that, since I don't post it on this site.
White Wolf - Makers of the greatest RPG on the shelves...Werewolf: The Apocalypse.
The Wolf Homepage - More wolf info.
ZDNet - Demos and downloads galore.

Inside FurNation:

Ash - A truly awesome artist.  Refined his style a bit and is now one of the best on FN, imo.
Canis Lupus - Amazing art.  Can't say enough good about it.  This is a must see site.
Dhriisi - Best dragon art I've seen to date.  That's all I need to say.
Dream Tiger - A great writer, and a great friend. One of the best writers of yiff I've ever seen.
Evil T Rex - Dino/Reptile art at its finest.  Some interesting non-furry stuff as well...
Foxxfire - A very talented artist.  Offers prints of just about everything if you're a true collector.
Frank Gembeck - The master of colored pencil (at least I think that's what it is).  Check him out.
K-9 - Cartoony...only not.  Excellent artist.  Worth checking out.
Kaa - Excellent Dino/Reptile art.
Karabiner - This fur is right up there with Werepuppy.  Amazingly detailed art.  Worth a visit.
Krahnos - Very detailed, very realistic dragon art...although updates haven't been much of a frequent.
Kylee - Very realistic pencil work.  Almost unparalelled.  Love his work.  Also my former mate.
Nakira - AKA Wookie.  Love his work.  Highly detailed...very suggestive, but not outright yiffy.  Tease!
Pissy Badger - A great artist with a little bit of a cartoony feel.  Still very pleasing.
Rangarig - 3D dragon/reptile renderings and animations.  Very aesthetically pleasing.
Rog Minotaur - Relatively new, but...well...damn!
Singe - How can you not like Singe?  That's all I have to say.
Storm - The most unique looking fur I've seen.  Still, he has excellent art.  And now he has a page too! (Courtesy of modest, ol' me.)
Werepuppy - One of, if not the best furry artist out there.  Also a great friend.

Note: These are the sites I can think of off the top of my head.  If you want me to add you, let me know.  If you want me to take you off my list for whatever reason, let me know that too.