Bible Gateway - Great resource for looking up Scripture in different translations

Sonic Light - Online commentary on every book of the Bible 

Probe Ministries - Resource to help you defend your faith 

Desiring God Ministries - John Piper's website.  Great articles on about anything. 

Focus on the Family - Articles and resources for parents and teenagers 

Plugged In Movie Review - Reviews current movies and DVD's from a Christian perspective 

Planet Wisdom - Articles and other resources on faith, culture, etc.