Bible Research
Crosswalk.com is the best and easiest Bible program on the web. This site has a friendly collection of full-text Bible study tools, Jamieson Fausset & Brown's commentary, Baker's Evangelical Dictionary, Greek and Hebrew lexicons, concordances, several Bible versions and more.
UnboundBible.org is good for a parallel study.
BibleGateway.com has some volumes of the IVP New Testament Commentary series that are available through biblegateway.com. Type in a New Testament passage in the Lookup Passage box, such as John 1:1, and "Read the Commentary" is a search result option.
e-Sword.net has free Bible software to download.
TyndaleHouse.com - Consult this website for a great list of translations and original texts and other Biblical research resources.
Bible.org has Teaching Helps, a Sermon Illustration Database and the International Standard Bible Encyclopedia, Full-text [1939 ed.].