Helpful planted aquarium reference links

[charlie]

Here are some  sources of planted aquarium topics, if you have some suggestions for others , please PM me with them & i`ll have a look at them.
Substrate calculator:
http://www.plantedtank.net/substratecalculator.html
Dosing strategies:
http://www.aquaticplantnews.com/
Lighting for Plants based on Tropica:
http://www.canadianfishforums.com/plants/plants.htm
Guide to Planted Tanks:
http://www.rexgrigg.com/
Plant Deficiency:http://www.aquaticplantcentral.com/forumapc/aquarium-pictures/browseimages.php?c=12&userid=&t=
http://www.csd.net/~cgadd/aqua/art_plant_nutrient.htm
EI ( estimative index) light: for those less techy folks:
http://www.barrreport.com/showthread.php/2819-EI-light-for-those-less-techy-folks
Low-Tech Natural Aquarium Guide:
http://www.malloftheworld.com/aquarium/part1.htm
http://azdhan.googlepages.com/thelostworld2 ( submitted by jart)
Algae
http://www.aquariumalgae.blogspot.com/
http://www.rexgrigg.com/Algae1.html

Great site for aquasketching & more
http://www.theaquatools.com/aquasketcher

Plant ID
http://www.tropica.com/en/plants/plant-list-a-z.aspx

Edited to fix link on EI dosing