RootsIreland, the online database operated by the Irish Family History Foundation, says it hopes to be releasing more records from County Monaghan early next week.
Baptism records for nine Roman Catholic Monaghan parishes (Carrickmacross, Donaghmore, Dummully-Currin, Ematris, Errigal Truagh, Inishkeen, Magheross, Monaghan and Tydavnet) are already available on the site. Whether the 'new' records being added next week will be baptisms from the remaining 20-odd RC parishes in the county, or Church of Ireland records of marriage records, I don't know.
IrishGenealogy.ie, the free site funded by the Department of Arts, Heritage and the Gaeltacht, has been threatening to upload Monaghan church records for most of this year but they've never materialised, so it'll be interesting to see what RootsIreland are offering for a fee.