Documentation Search
CiviCRM 3.4 and 4.0 Documentation
Support and Participation
Developer Resources
Make sure to check out the FLOSS Manual Understanding CiviCRM as well! You can also support this project by ordering a hard copy.
Or support us by buying an eBook or hard copy of Using CiviCRM from Packt Publishing.
Please refer: http://en.flossmanuals.net/civicrm/ch037_configuring/