The Mormon's do indeed. They've a web-site athttp://www.familysearch.org/http://www.familysearch.org/.It works fairly well.Subscription based, but worth the money (I forget how much I paid for a 1 yr. subscrip'n.) Even when one cannot find the exact/right prople, sometimes the "near misses" are helpful.
The site I find most useful ishttp://www.ancestry.com/http://www.ancestry.com/. Also subscription based, but very well worth the money.They even have books that have been digitised, are online and searchable; not to mention a good selection on census' online.