Historical Societies

• UK’s Baptist Historical Society
• Southern Baptist Historical Library and Archives
• The Strict Baptist Historical Society

Online Articles

• The Baptist Start Page (a collection of articles and historical documents which focus on Baptist distinctives)
  
• The Reformed Reader (committed to historic Baptist beliefs where one may discover their rich Baptist theological and doctrinal heritage. It is also hoped for those who are new to Baptist beliefs, an introduction to our rich cultural heritage will be presented.)
• The Reformed Baptist Theological Review (an online theological journal)
  
• Baptist Theology (a ministry of the Center for Theological Research at Southwestern Baptist Theological Seminary in Fort Worth, Texas)
• Baptist Center for Theology and Ministry (a ministry of New Orleans Baptist Theological Seminary)
• Institute of Reformed Baptist Studies (located on the campus of Westminster Seminary, California, this website features articles by academic dean Dr. James Renihan)
• Fontes (the writings of Michael A. G. Haykin)
• Mount Zion Primitive Baptist Church has a collection of historic Baptist books and articles in both html and pdf formats.

Blogs

• Historia Ecclesiastica (Michael A. G. Haykin)
• Nathan A. Finn
• The Jonathan Edwards Center at Yale
• SBC Witness

Books

• The Baptist Standard Bearer
• Studies in Baptist History and Thought by Paternoster
• Particular Baptist Press

I’m sure that this list is not exhaustive. If there are others which you know about, please let me know.