When making nightshots , big enlargements or cropping our files , we need to get rid of excessive noise . Here are some ways to achieve this :

http://www.fredmiranda.com/Action_profilesPage/index.html

http://www.2morrow.dk/75ppi/coolpix/actions/

http://www.ddisoftware.com/qimage/

http://home.att.net/~f.croce/Downloads/ForrestNoiseRemoval/NoiseRemovalforDigitalCameras.htm

http://www.neatimage.com/filtex-D30-D60-1D.html

http://members.aol.com/_ht_a/coolato/digitaltechniques.html

http://netnet.net/~llueck/NR.htm

Jay Patel's new noise reduction action and Filters for D30 .

Applied Science Fiction™  New noise reduction program

Noise Reduction Tool Comparison

Neatimage  &  Neatimage - tutorial

PictureCode Noise Ninja home page

Demo Noise Ninja 2 beta

Profiles for 1DMkII for Noise Ninja 1.1 and 2.0 by Hatam

Noise Reduction Tool Comparison  An 11 pages test ! Very detailed .

Imagenomic NoiseWare : New , Fast and Free !

Helicon : another amazing noise reduction tool . Free 

A splendid Noise Reduction action by David Marsit