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.
Here is a site of all of the OCS supposed "holy books" in PDF form.
The link you posted is one of my favourite sites for linguistic resources and has greatly helped me.
Good luck doing whatever the heck you are doing, hope this helps.
Old Testament:
http://lib.ru/HRISTIAN/BIBLIYA/old/
New Testament:
http://lib.ru/HRISTIAN/BIBLIYA/new/
I also forgot to mention that if you are trying to learn this language, the wiktionary site has quite the resources for OCS vocabulary. http://en.wiktionary.org/wiki/Category:Old_Church_Slavonic_language
Just as a suggestion, when reading these texts, the letter "o" is sometimes represented as a odd looking jagged line above the letter following the location of where the "o" should be.
