This site contains extensive statistical information on the banking system in the U.S., as well as some information for consumers on deposit insurance and dealing with bank failures. In addition, there is information for librarians and researchers on all statistical publications by the FDIC.
Statistical information is from "The Statistics on Banking." There are issues for 1934-1992, for 1991, 1992 1993 and 1994. Most data is in Lotus 123 .WK1 format. There are numerous help files that explain the holdings.
ftp://nic.sura.net/pub/fdic
gopher://fdic.sura.net:71/1/
Bill Goffe <bgoffe@whale.st.usm.edu>