Following are selected links to websites that relate to Southwest Jewish history, Crypto-Judaic studies, and synagogues.

Tucson and Arizona

Arizona Jewish Historical Society
Arizona State University's Hillel Center
Jewish Federation of Southern Arizona and its Synagogues in Southern Arizona 
Jewish News of Greater Phoenix and its Arizona Congregations list [PDF]
University of Arizona's Hillel Center

Related Websites in the U. S. West

Abq Jew Jewish life in Abuquerque
Center For Judaic Studies at The University Of Denver
Dallas Jewish Historical Society
El Paso Holocaust Museum
Society for the Study of Crypto Judaic Studies
Harriet Rochlin & Western Jewish History
Jweekly.com - Jewish news weekly of Northern California
New Mexico Jewish Historical Society and its Relevant Links
Stories Untold: Jewish Pioneer Women, 1850-1910

National and International Sites on Judaism and Jewish Resources

American Jewish Historical Society (AJHS) 
American Jewish Archives, Hebrew Union College - Jewish Institute of Religion
Israel Science and Technology Homepage
Dartmouth Jewish Sound Archive
H-Judaic: Jewish Studies Network (JSN)
Judaica Sound Archives, Florida Atlantic University
Kulanu - All Of Us -
SAUDADES: Portuguese Sephardic History
Shamash: The Jewish Interne Network

Jewish Genealogy Websites

The Israel Genealogical Society (IGS)
FamilyTreeDNA
The DNA Shoah Project 
Sefard Forum
Sephardim.com A Research Tool for Sephardic Genealogy/Jewish Genealogy
American Jewish Arichives: Genealogy
New Mexico Jewish Historical Society's Jewish Genealogy
JewishGen, Museum of Jewish Heritage
1Media.org (specializes in the digital recording of historical graveyards and cemeteries)