My favorite website for good biblical material is not by a member of the Lord’s church (discernment needed) is http://www.bible-researcher.com/index.html. Good material for the serious student. Another good source, in the brotherhood, is Apologetic Press (http://www.apologeticspress.org/). While I do not have the address, two others would be the Christian Courier, and Jody Apple’s http://www.thebible.net/index.php.
In general, however, each webpage associated with those on TFR, would be worth looking at. Two to make special note that I have gone to is Randal’s and Stephen Bradd’s. Plenty of material worth looking at and gaining knowledge.