(unsorted!)
Raytracing:

POV-Ray Homepage: http://www.povray.org/ - The homepage of the greatest Freeware-Raytracer ever.
Moray-Homepage: http://www.stmuc.com/moray - Also an important adress, especially for the users of Moray. Check out the great object-library!
3D-Spot: http://www.3dspot.com/main.html
Steve Wallace's POV Utility Review - Page 3 - Animation Utilities: http://www.dhc.net/~swallace/pg3.htm - A few quite interesting sites about POV-Ray and about doing animations with this raytracer.
3D Modelling and Rendering: http://www.oocities.org/SiliconValley/Park/7425/3d_modeling_and_rendering.htm
3D ARK : Smile if you like 3D. : http://www.3dark.com/

Terragen-Homepage: http://www.planetside.co.uk/terragen/ - This is the official Homepage of Terragen, an excellent freeware landscape modeller/renderer. Here can be downloaded documentations, new versions, etc..
Terragen - Paysages vituels: http://www.multimania.com/bianco/terra.html - A French site dedicatetet to Terragen, here you can see many cool Pictures created with it.
Nathan's Pages: http://nathan.kopp.com/ - The homepage of Nathan Kopp, the creator of Nathan's Lens-Flare-Plug-In for POV-Ray. Here you can get many tools for POV-Ray, or even new Versions of the raytracer itself. Also make sure to check Nathan's geniuos renderings!
Das Deutsche PoV-Magazin (DPM): http://www.stud.uni-goettingen.de/~jthewes/dpmur.htm - A very cool mag for beginning/advanced users of POV-Ray (in German).
Anto Matkovic's Page: http://www.oocities.org/SoHo/Studios/7415/ - Very much information about the spline-modeller SPatch. Also a great amount of objects for this modeller.
Dom's home -- The 3D modeling Page: http://www.mech.ed.ac.uk/~dom/3d/3d.html - Many 3-D-models and pictures
MetaCreations: http://www.metacreations.com/ - Here you can get information, updates and tools for many good graphic-programms, such as Poser.
The Internet Ray Tracing Competition: http://www.irtc.org/ - The absolute raytracing-competition for people all over the world. Here you can see how the elite do it.

Piece of PAS!: http://parnham.future.easyspace.com/ - Much information about the topic Terragen, here you can get Terranim.
Poser Forum Online: http://www.poserforum.com/index.ez - Very interesting sites about Bryce and Poser.
POV-Ray Include Files Page: http://www.oocities.org/SiliconValley/Lakes/1434/ - Homepage of Chris Colefax.
3D WEB: http://cthree.co.uk/3dweb/index.html
StormVision, the home for 3D enthusiasts: http://www.stormvision.net/
Das deutsche Cinema 4D-Forum: http://www.c4d-forum.de/ - If you've got questions about Cinema 4D or 3D programs in common, there is surely no better place to ask them. Sometimes even people from Maxon come to that place (German).
Cinema 4D-Treff: http://www.c4d-treff.de/ - The Cinema 4D-Treff, here you'll find tutorials, textures, models many links and from time to time competitions with interesting prizes. (German).
3D-Unlimited: http://www.3d-unlimited.com/
3D-Render: http://www.3dRender.com/
Maxon: http://www.maxon.com - The company behind Cinema 4D
Homepage von Arndt von Koenigsmarck: http://www.vonkoenigsmarck.de - The German Cinema 4D users meet every Saturday and Tuesday from 21.00 to 00.00 to chat.
Cineplace: http://www.cineplace.de/ - Objects, shader and tutorials for Cinema 4D
Deepshade: http://www.maxon.de/deepshade
- This is the place with the biggest database of shaders (materials and textures) for Cinema 4D I know in the web. Many of the shaders use bitmaps as textures that can be used in other 3d-programs, as well.


Other sites dedicated to the topic computer-generated graphics:
Welcome to DsgnHaus: http://www.fonthaus.com/ - Here you can find thousands of amazing TTF-Fonts
i/us -- The Plugin Head: http://pluginhead.i-us.com/ - And here many plug-ins, macros and other tools for the Abobe Photoshop.
Laurie McCanna's complete list of Photoshop tutorials: http://www.mccannas.com/pshop - Many tutorials for the Adobe Photoshop.
PSP Resources: http://www.frontiernet.net/~willshak/PSP_Resources/resources.html - Stamps, different paintbrushes, textures and everything else what can ease the use of PSP.


Battletech:
Mechwarrior 3 Demo Download: http://www.mechwarrior3.com/demo.html - Here you can directly download the Mechwarrior 3 Demo. For those of you which haven't bought any Demo-CDs...
The Mech Constructors Association: http://www.inspired-designs.net/~bex/www/main.html - Here you can find an incedible amount of Mechs modelled by Battletech-maniacs. The objects can be downloaded as DXF.
Mechwarrior Battletech Online: http://www.mechwarrior-online.de/ns/framens800.html - Are you the greates Mechwarrior of the galaxy? Prove it!
Slayer's Battle Tech Page: http://www.sarna.net/btech/bt-mc.shtml - A good site to the topic Battletech many Links, many Downloads to all BT-computer-games.
Marauder's BattleTech Site: http://www.csc.calpoly.edu/~jmoerdyk/Btech/btech.html - Many links, also much BT-accessories.
MechCommander - You will know what it is to command: http://www.mechcommander.com/ - MechCommander Homepage. Very nice site, just look at those running 'Mechs (GIF-animations)!
MY MECH WORLD!!/A K I R A /BATTLETECH CCG PAGE: http://www.angelfire.com/mi/lordkhyron/index.html
Patrick's homepage: http://www.kerensky.tierranet.com/ - Here you'll find almost everything about Battletech (history information, pictures, animations, sounds, music...)
Clan Jade Falcon Black Omen Galaxy: http://www.angelfire.com/ok2/BlackOmenCluster/index.html - The homepage about the famous Clan Jade Falcon elite-unit
Black Omen Galaxy. Unfortunately the page will not be updated any more, though it is a place worth visiting.


BBS' und Mailboxen im Internet:
Ray InfoSystems Bulletin Boards - Ray BBS Munich: http://www.ray.camelot.de/raybbs.html - Homepage of the Ray-BBS Munich.
911 Mailbox Göttingen: http://home.t-online.de/home/m-911/homepage.htm - The 911-BBS Göttingen, one of Germany's best Mailboxes.


Sites of other former readers of the CF and of friends:
Sven "Schaffi" Schaffarczyk: www.schaffi.de - Here you can always get news, many Midis & MP3s and other things. Cool design! Also make sure to check the Mumpitz-sites there!
Thomas "Elder Atropos" Allen: http://www.angelfire.com/on/atropos - Some sites dedicated to vectorgraphics and programming with C/C++.
"ATAT Lin": http://come.to/atatlin - Internetsite about the topic StarWars.

Gaby "IGV" Chaudry: http://www.gaby.de
Josef "Dr. Maux" Spillner: http://www.members.xoom.com/dr_maux - Homepage of the Monty Ass

The Collectview of the CF-Borg: http://www.borgcollective.de
Teacher: http://www.home.t-online.de/home/W.Staedter
Jörg "Speedster" Roberts: http://private.freepage.de/speedsterjr
Micha "ICH2" Leykum: http://www.ich2.home.pages.de - some interesting things, such as BSOD(Blue Screen Of Death)-Simulations, Bill Gates-Videos, etc...