You asked for it and you got it! This list probably isn't as comprehensive as I would like, but I found as much info as I could, and now I'm sharing it with you. :-) I've simply listed the sites with mod information, as opposed to trying to explain how to do the mod. I figured I'd leave that to the people who have actually done a mod for themselves. The mod sites are listed by manufacturer, and then by model number. At the end of the article are several sites that have either general information, or information about more than one player.

I also have to give the biggest thank you ever to Chunglee76 for supplying a bunch of links for me to check out. :-)

Disclaimers: Since I don't have a standalone player, I have not road-tested any of the mods that are listed below. And I wouldn't dare try to modify the Wanderer's DVD-ROM. These are simply the sites that I found that provided the most (and what looked to be the most accurate and easiest to use) information.

I would also advise against soldering (unless you really, really know what you're doing). If you do decide to try this, there is the distinct possibility that you will ruin the player.

And, of course, the final disclaimer. On most players, cracking the case open and modifying anything nullifies the warranty. Basically, I guess I'm saying that you should think long and hard before you decide to do anything to your player.

Players
Pioneer
Here are some mods for several models of Pioneer players.
http://www.zhwin.ch/~i7eberha/eng/codefree/cfpionner505eng.htm

Sony
This site has information solely about modding Sony players.
http://members.xoom.com/_XOOM/sonydvd

Philips Magnavox
No specific sites dedicated to the Philips Magnavox. Millions of apologies to Fam-Fan. I can't find anything at all about your player. Gomen nasai!

Panasonic
Several different Panasonic mods.
http://www.zhwin.ch/~i7eberha/eng/codefree/cfpanasonic100eng.htm

JVC
For all who have a JVC player, Aokakesu submits this helpful information for modifying your player.

DVD-ROMs
This site has downloads available for DVD-ROMs.
http://www.dvdtidbits.com/downloads/hp1_7w1.exe

This is for those of you who have Windows 98. It's got step by step instructions on how to get into regedit and tweak the settings. I would advise reading all the warnings that come before he actually gets into the modding part to make sure you don't delete something vital.
http://www.fourmilab.ch/documents/dvdregion/

This has mods for Creative Encore DVD-ROM players.
http://www.visualdomain.net/

Here's the DVD-ROM version of region hacks.
http://www2.datatestlab.com/regionhacks/

For those of you who have a Hollywood plus card, here's some info from Wuss912.

Miscellaneous Sites-these are the sites that have multiple players or general information.

This should be the first site you check if you can't find what you want on any of the other sites. This site has a wealth of information about standalones and DVD-ROMs alike. It also has information about whether of not the mod chip will work on your particular player. Click on the file icon, and check to see if yours is there. I have to mention that the site is primarily in German. However, it has been translated to English (including the Do it Yourself section), so as long as you have Acrobat Reader, you're all set.
http://www.zhwin.ch/~i7eberha/file/zsel121x.exe

It's all in the name: region hacks.
http://www2.datatestlab.com/regionhacks/_disc1/tocproto.htm

These guys are based out of Stockholm, and their chips do require soldering.
http://www.dvdirect.net/modification.htm

Based out of the Netherlands, these guys have the mod chips for all kinds of players.
http://www.moddevice.com/

This is a pretty cool site. No soldering, what else can I say? For $100 you get the mod chip, instructions, and a one year guarantee. Cheaper than a new player, at any rate.
http://www.dvdchip.com/

This is a site based out of Germany. They've got mods for a few Sony and Pioneer players.
http://www.megavision.de/mv_cf_diy.htm

Here's another site. It's got what they call a MultiMod, which can modify several players. It's also got a couple of manufacturer specific mods. It's based out of England (doesn't mention if they can only do region 2 stuff, though, or if they could also mod region 1 players), and you can send your player to them if you don't want to do the mod yourself (the mod does require soldering). Just keep in mind that sending your player to them, if you're in North America, Could be a little more than you're willing to spend on a mod. The one thing that I couldn't find was a pricing guide. Maybe you'll have better luck. :-)
http://www.techtronics.com/ttn/shop/510-multimod.html

This site has a few mods listed. It's still mainly under construction.
http://www.electronicsdirect.com/modification.htm

And here's the mother of all sites. You pick your player and make your mod! Gotta love that. Well, OK, not all players are listed there. But they do have 35 different players listed. Basically, it's a site where you can buy chip that mods the player. The site's based out of Holland, so I don't know if that would affect anyone who's ordering from the States or Canada.
http://www.stegen.com/models.html

Site Update! The above mentioned site has been road tested by a site regular. Click here for his comments on the site.

Codefree Players This is for those of you who either have not yet bought a DVD player, and are looking for a codefree one, or if you've already got one and need/want to buy a new one.

If you have no idea what kind of player you want to get, try this site: www.dvdbuyingguide.com . There's reviews, comparison charts, and all kinds of info to get you started on the road to buying a DVD player.

Here's a place to try, dvdcity.com. I'm not putting the link in here, 'cause I want you to go through the site. :-) They're an affiliate (plug, plug).

OK. This site primarily sells codefree players. If you're still shopping around for a player, this is the place to go for a codefree player. Here's the address for their homepage: http://www.codefree.com

Now, if all else fails, and you still can't find what you're looking for on one of the above sites, follow this link below. It's a message board where you can post what kind of player you have, and maybe someone who's far more knowledgeable than a mere catgirl like me could find/suggest a mod or hack for you.
http://www.dvdhunt.com/hardware/

I hope this information helps you guys in your quest for codefree-ness. If anyone knows of other sites that are good that I've missed, feel free to email me with the info, and I'll put it up in subsequent columns. :-)

LadyCat =^-^=