Ta-Shma
A collection of Torah texts, including a vast text library. The software can be run through the Word, or through dedicated and advanced software.
Nakedet
The effective Dot software in the world, with a wide range of functions, that will save you a lot of time, and a huge and accurate vocabulary.
Rabbinical Encyclopedia
A free collaborative encyclopedia that includes detailed information about personalities and rabbis from the beginning of creation to the present day.