In info I posted in 2008 came from ancestry.com which is a pay source and worth it. Next best source is familysearch.org all you have to do is register it is free.
If you live in Louisiana, there are Hebert's South Louisiana records, Southwest Louisiana Records, Diocese of Baton Rouge & New Orleans Diocese books.
List of books on Louisiana: pelican publishing companyhttp://www.pelicanpub.com/products.php?cat=161
LOUISIANA STATE ARCHIVES for birth, marriage, death records
3851 Essen Lane
PO Box 94125
Baton Rouge, LA 70804-9125
ALL PARISHES LISTED
There are genealogical & history societies in Louisiana that might be a good source for the Parishes your researching in, and information published or posted online are done by volunteers.www.bienvilleparish.org
Bienville Historical Society
RT. 1, box 9, Bienville, LA 71008www.sec.state.la.us/archives/archives/archives-library.htm
new orleans archiveswww.notarialarchives.org