http://www.teleport.com/~eidos/dtpij/dtpij.html
A great place to start your search for DTP-related stuff. Discussion groups, software sites, FAQs and more.

http://www.philsfonts.com/
Just what it sounds like. Free Fonts, more fonts, links to foundries and more.

http://www.oasiscd.com/
If you're working on packaging for a music CD you'll want to talk to the folks at Oasis. Good rates, good product. And now they have EPS templates for CDs, tray liners, J-cards, etc., on-line.

http://www.capspec.com/
Capital Spectrum in Austin, TX is a very cool company. They've been a big-time color house for many years and changed with the times so they are now one of the best equipped service bureaus as well.

http://www.sas.upenn.edu/~pitharat/photoshop/filters/filters.commercial.html
A collection of free, not quite free, and expensive PhotoShop Plugins. Beveled buttons? No problem.

http://www.publish.com/
Publish magazine's site with lots of info. Their "Software Closet" has a good mix of Mac and PC DTP-related programs.

http://www.XT-now.com/
Quark Xtensions up the yinyang.

http://www.asap.net/resources.html
PC/Mac tips & tricks, mostly PhotoShop-related. More lists of links.

http://www.filmet.com
A big custom photo lab in Pittsburgh that also changed with the times. Output to slides, short-run Agfa Chromapress, giant inkjet output and lamination for displays, as well as normal service bureau imaging & prepress, and traditional color lab work. Great prices. Ask for Kelly. ;)

http://www.agpagp.com
Advanced Graphics and Publishing is one of the best Corel-certified service bureaus around.

http://www.lehigh.net/zuzu/dtplink.htm
Zuzu's Petals -- someone else's idea of what's important to us DTP types. Extensive. Clipart, graphics programs/scanners, fonts, more.

http://www.adobe.com/
Boring but very useful.

http://www.corel.com/
Really, really boring but very, very useful (given how bad the initial releases of any Corel products are).

http://www.micrografx.com/
A good company that doesn't get anywhere near the credit they deserve. Confusing but somewhat useful site. No patches 'cuz they don't screw up very much. Includes Tech Support access. (But have they fixed their JPEG export filter yet?)

http://www.hp.com/
Printer drivers and lots of corporate fluff.

http://www.xante.com/
Nicest company on the planet as far as trying to make good on their promises. 1200dpi 12x18? Don't even talk to LaserMaster. Those of you looking for tech support on older Accelawriter upgrade products, be aware they refer to them as the "Phoenix Page" product line, after the manufacturer of the original "fake" PostScript interpreter. (Before Xante signed up Bo and Adobe.)

http://www.metatools.com/
Home of Kai power tools, some of the best PhotoShop plugins around... just merged with Fractal.

http://www.fractal.com/
Great products but these homepages don't have much meat.

http://www.real.com/
"Real Audio" and "Real Video" for the Internet. Personally, I lost contact with reality a long time ago, but if you need info on this aspect of Internet workings, this is the place to start.

http://www.mysharewarepage.com/
PC shareware, program patches, all categories, nicely arranged.

http://www.download.com/
C/Net's site with some of everything.

http://www.microsoft.com/
Duh!

http://www.smith-wesson.com/
No, it's got nothing to do with graphic arts, but, sometimes, an Ex-acto just won't cut it for some clients...