For certain help with raid builds, DPS builds, or Leveling Builds
you can check out some links i have provided for classes from Wowikki! Look at the "Links Window" that should be to the left of the page!.
For a good Horde leveing guide i would recommend
http://joanaswowguide.com/ Joana's Horde Leveling guide 1-70 or 1-80 :D (not free :o)
For some really good profession guides i highly recommend
http://www.wow-professions.com/ (and its free!)
The World of Warcraft Guide Forum :)
This is a PvP guide to anyone who is EXTREMELY new at it!
http://www.gotwarcraft.com/pvp.php (i read it when i first started playing)