Bro. Mike,
Here's one that I came across at some time or another. It has some circular letters, histories of Baptists in different States, biographies, books, controversies, etc. As the introduction says, the collection is "eclectic," so I'm not gonna guarantee that it will all be to our liking, but you may be able to find some very good stuff there.
Here's the link:
http://www.geocities.com/baptist_documents/index.page.introduction.html
