Aperture Cheat Sheet - WAHOO!!! This helps SO MUCH!
nikon and canon lens price comparison
Remove objects from the background of your photo in CS6
A Beginner's Guide to Photography - Understanding Your Camera This site also has very clear tutorials for other photography topics
You can take great macro shots with the gear you already have. No expensive macro lens required!
How to use aperture to get a nice blur effect. The depth of field can make a picture go from normal to amazing. Try using this to better your photos, this website has a lot more helpful information. -JPH
Shutter Speed Crib Sheet
How to use Aperture Shutter Speed and ISO Info Graphic