Wace is a dictionary of people sects and heresies

Boyd Bible Dictionary
Dictionaries/ December 4, 2016

From the publisher: Though compact in size, this dictionary includes thousands of biblical references. It lists and identifies all proper names in the Bible, and provides information on places and events described in Scripture--complete with pronunciations, definitions and textual references.

Torrey, R.A.-Treasury of Scripture Knowledge
Cross Reference/ November 23, 2016

Treasury of Scripture Knowledge is essentially a cross reference work, set up similar to a commentary (in a commentary format for theWord), and under each verse of the Bible, there are cross references (which theWord makes it very easy to mouse over the references and read them without having to click anything).

Torrey New Topical Handbook
Textbook/ November 20, 2016

The original Torrey's Topical Textbookd had on 628 entries and 20,000 Scripture Cross-References, the New Topical Textbook was published with 20,000 Topics and Sub-topics and 30,000 Bible References.

Fausset’s Bible Dictionary
Dictionaries/ October 30, 2016

From the co-author of the classic Jamieson, Fausset and Brown Commentary, Fausset’s Bible Dictionary stands as one of the best single-volume Bible encyclopedias ever written for general use.

Thayer’s Greek Lexicon
Greek Dictionaries/ October 2, 2016

A classic Greek lexicon useful for every theology student. Note that Thayer was a universalist, so be careful with any word dealing with salvation, and also the Trinity (his definition of "Christ" would seem to doubt Jesus' deity). Basically the majority of his word definitions are from standard usage in the Greek NT and classical literature, so in theologically charged words, be careful.