These are some links that I've found to be quite helpful and just plain handy!
Camera help:
A "virtual camera" to play with: http://www.camerasinteractive.com/index.php
Another "virtual camera" to play with, SimCam: http://www.photonhead.com/simcam/
Glossary of photo terms: http://www.kodak.com/global/en/consumer/glossary/glossaryContents.shtml
Another Glossary of terms: http://www.profotos.com/education/referencedesk/glossary/index.shtml
Lots of basic composition, and PP help: http://www.ronbigelow.com/articles/articles.htm
Kodak's beginning composition: http://asp.photo.free.fr/Composition/photoProgramCompMainClass.shtml
Another great site on composition: http://www.johnharveyphoto.com/LearnComposition/
Bernie's Beginner's Guide: http://www.berniecode.com/writing/photography/beginners/
Depth Of Field Simulator: http://www.liquidsculpture.com/dof.htm
Depth Of Field Table: http://www.dofmaster.com/doftable.html
Depth Of Field Calculator: http://www.tawbaware.com/maxlyons/calc.htm
Dpeth Of Field Calculator (camera specific): http://www.dofmaster.com/dofjs.html
A site all about exposure: http://www.photonhead.com/exposure/
Great site all abut composition: http://photoinf.com/General/KODAK/guidelines_for_better_photographic_composition.html
Imaging Resource Comparometer (compare the pictures of two cameras): http://www.imaging-resource.com/IMCOMP/COMPS01.HTM
The Ultimate Exposure Computer: http://www.fredparker.com/ultexp1.htm
Understanding Exposure: http://www.luminous-landscape.com/tutorials/understanding-series/understandexposure.shtml
Post Processing help:
Better BW: http://www.luminous-landscape.com/tutorials/b-w_better.shtml
Light's Right Digital Darkroom: http://www.thelightsrightstudio.com/digital-darkroom.htm
Free CS2 video tuts: http://www.video-tutes.com/packages/PSDesign1.php
JPEG Myths and Facts: http://graphicssoft.about.com/od/formatsjpeg/a/jpegmythsfacts.htm
JPEG Quality Test: http://www.ranum.com/fun/lens_work/papers/jpegquality/
JPEG Quality Test II: http://www.michaelfurtman.com/jpeg_myths.htm#comparison_photo
MorgueFile free online photography course: http://www.morguefile.com/archive/classroom.php?sid=c188606cfcf6730aee0319ab6201ef96
OOB Tutorial: http://www.graphics.com/modules.php?name=Sections&op=viewarticle&artid=188
"Painting With Light": http://forums.dpreview.com/forums/read.asp?forum=1006&message=11481239
Basic Post Processing/Workflow: http://raymondshay.com/tutorials/PhotoEditing101/index.htm
LOTS of extraction problem solving links: http://forums.dpreview.com/forums/read.asp?forum=1006&message=12818488
Russell Brown Photoshop Tips: http://www.russellbrown.com/tips_tech.html
Sensors, Pixels and Image Sizes: http://www.shortcourses.com/sensors/
Zuber Photoshop tutorials: http://www.zuberphotographics.com/
General:
The Photographers Rights: http://www.krages.com/ThePhotographersRight.pdf
SumoPaint. Online, web based image editor that doesn't suck!: http://www.sumopaint.com/web/#/home/
Best photo forum of the net: http://photographyatnewenglandmoments.com/index.php