Philadelphia Pa death certificates from 1885 to 1915 and marriage licenses 1881 to 1951 are available on line at http://search.labs.familysearch.org/recordsearch. The death certs can be viewed online. The marriages are listed alphabetically and give the names of parties, year, and license number. The actual marriage license is supposed to be put online in the future. There are also viewable 1880 and 1900 census records and misc other items of genealogical interest. Good luck in your search!