E-Sword -- Free Bible-searching software with several Bible versions, lots of study aides, commentaries, and more.
Torah Resource -- Resources and e-learning for Torah CommunitiesBereans Online -- Studies and audio teachings.
The Whole Bible Web Site -- A group of Christians who have the radical idea of reading the entire Bible and doing what it says.
En-Gedi Resource Center -- Information about the Jewish roots of Christianity.
Caspari Center for Biblical and Jewish Studies -- Historical research regarding Jewish Christians.