Here's an interactive website that has the potential to become a "one-stop shop" for marriage records from around the country.
"GenWed.com is a free genealogical marriage record database and link directory to other marriage records online for the United States, Canada, and the United Kingdom. It is not owned or maintained by any subscription website. Currently there are more than 25,000 marriage records for various states and counties with more being contributed by visitors, and over 27,000 links to free marriage records on other sites. GenWed has received an award for being one of the 50 Top Genealogy Websites on the Internet." Source: GenWed.com