Pennsylvania Death Certificates are available for free to Pa Residents. Go to the above page, put in a valid Pennsylvania Zip code, click on the blue "go to Pa archives..." and you will find the search page.
Currently Death Certificates from 1906 - 1944 are on line. 1945-1966 will be on line after November 2014..... Birth Certificates for 1906 will be on line March 2015.