Website http://www.eveonline.com/

EVELOPEDIA is the most valauble single source of guides:
http://wiki.eveonline.com/en/wiki/Guides
of note:

Eve Wiki:
http://www.eve-wiki.net/index.php?title=Main_Page

Misson Guide: http://wiki.eveonline.com/en/wiki/Missions_Guide
Exploration Guide: http://wiki.eveonline.com/en/wiki/Exploration_Guide
Manufacturing Guide: http://wiki.eveonline.com/en/wiki/Manufacturing
Salvaging Guide: http://wiki.eveonline.com/en/wiki/Salvage
Trading Guide: http://wiki.eveonline.com/en/wiki/Trading_%28Profession%29
Mining Guide:http://wiki.eveonline.com/en/wiki/Mining_%28Guide%29
Useful image of what Ore can be found where:
http://wiki.eveonline.com/en/wiki/Image:Ore_grid.png

Info on Cosmic Anomaly:
http://wiki.eveonline.com/en/wiki/Cosmic_Anomalies
and Cosmic Signatures: imortant to know the difference!
http://wiki.eveonline.com/en/wiki/Cosmic_Signatures

Market Browser and Trade finder:
http://eve-central.com/

Trade price analysis:
http://eve-tools.org/productIndex.html?indexName=Minerals

Ore finder:
http://fluidorbit.co.uk/

Battle Clinic Loadout browser for best-fits for ships. Not relavant until higher level I think:
http://eve.battleclinic.com/browse_loadouts.php

Courtesy of ~Z~