http://www.utexas.edu/cola/centers/lrc/eieol/ocsol-0-X.html will teach you a bit of Old Church Slavonic based on Biblical texts. While I have found some rather odd transliterations into the "English" alphabet on a Finnish site, I've not been able to find electronic Bible and Prayer Book manuscripts in Old Church Slavonic. This strikes me as rather odd. Has anyone had better luck?
Thank you for the link! This will be useful if I ever have the time to learn Church Slavonic.
Last week I noticed a Church Slavonic Bible app you could buy at the iTunes store.
Available Now
Build your biblical library with a new trusted commentary or resource every month. Yours to keep forever.