LINKS:

On-line Resources for Digital Photography:

Here is a list of on-line resources about photography and photo gears:
http://photo.net/
(best place to browse top photographers' work)
http://photography.nationalgeographic.com/
(national geographic's photo gallery)
http://dpreview.com/
(reviews cameras and lenses, pretty extensive and scientific investigations on cameras!)
http://the-digital-picture.com/
(Bryan Carnathan's website about canon gears, excellent source for comparing sample images of canon lenses for sharpness, vignetting, chromatic aberration and so on)
http://imaging-resource.com/
(camera reviews, has excellent comparison tool for camera's high ISO performance and color reproduction)
http://photozone.de/
(mostly lens reviews)
http://www.dpreview.com/learn/
(Glossary for digital camera technologies and quite comprehensive introduction to digital imaging)
http://imaging-resource.com/IMCOMP/COMPS01.HTM
(imaging-resource's comparison tool for a wide range of cameras)
http://the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx
(Bryan's comparison chart for Canon lenses, the best place to look for Canon's lens review, compare sharpness, etc)
http://www.cameralabs.com/
(good reviews for SLR and point and shoot cameras, includes videos and good sample images in the reviews)
http://pbase.com/
http://www.pixel-peeper.com/
(hosts for photo uploading, lots of sample images taken all around the world in different situations)
http://www.shortcourses.com/index.html
(short course in digital photography, this is the first place I started studying for photography)
http://www.cambridgeincolour.com/tutorials.htm
(short tutorial, but serious stuff!)
http://dpbestflow.org/
(digital imaging guide)
http://www.photoshopsupport.com/
(quite comprehensive list of on-line resources related to Photoshop and Lightroom)
http://www.layersmagazine.com/
(layer magazine's web space, tutorials, articles and videos about photography software)
http://www.scottkelby.com/
(Scott Kelby's blog, He is the president of NAPP and editor and publisher of layers magazine, I learned a lot about digital photography from Scott's books)
http://www.photoshopuser.com/
(NAPP's web-space, includes newsletter and tutorials about Photoshop and Lightroom)
http://www.lightroomkillertips.com/
(Lots of good videos about Lightroom and Photoshop)
http://slrgear.com/
(review of SLR gears mostly by users)
http://picasaweb.google.com/
http://www.flickr.com/
(A place to upload photos and look for sample images of other people from around the globe)