Some more useful links.
http://www.evegeek.com - Calculators for damage, tanking and mining, along with some mission info.
http://www.fluidorbit.co.uk - Ore Map, find out which systems have the best ores to mine.
http://eve.grismar.net - Wiki with some useful info and a bunch of tools, most of which work in the in game browser
http://www.eve-central.com - Market search engine