FBCapp

Bible Gateway

Biblegateway.com is a fantastic site for general reading and study.  It offers various versions and some study helps.

Blue Letter Bible

Blueletterbible.org is a commentary site with free access to an abundance of commentary and other aids.

Precept Austin

Preceptaustin.org is a site that has done the bulk of studying for you.  Simply search the book your interested in and you'll find a great deal of information on that book.

YouVersion

Youversion is a fantastic Bible app for your mobile device.

Logos Bible Software

Logos Bible Software is one of the most powerful Bible study tools available.