The following dictionaries can be read online (free), downloaded in plain text format (free), and downloaded in PDF format (not free). Please note that these dictionaries and other books on the Christian Classics Ethereal Library web site are governed by a copyright policy (http://www.ccel.org/about/copyright.html).

Easton's Bible Dictionary
http://www.ccel.org/ccel/easton/ebd2.html

Smith's Bible Dictionary
http://www.ccel.org/ccel/smith_w/bibledict.html

Hitchcock's Bible Names Dictionary
http://www.ccel.org/ccel/hitchcock/bible_names.html

Dictionary of the Bible Dealing with its Language, Literature, and Contents: Volume 1 (A-Feasts)
http://www.ccel.org/ccel/hastings/dictv1.html

Dictionary of the Bible Dealing with its Language, Literature, and Contents: Volume 2 (Feign-Kinsman)
http://www.ccel.org/ccel/hastings/dictv2.html

Dictionary of the Bible Dealing with its Language, Literature, and Contents: Volume 3 (kir-pleiades)
http://www.ccel.org/ccel/hastings/dictv3.html

Dictionary of the Bible Dealing with its Language, Literature, and Contents: Volume 4 (pleroma-zuzim)
http://www.ccel.org/ccel/hastings/dictv4.html


Hope this helps...
Joel.