At last, the earlier records and the marriages have been added! Unfortunately I only found out late at night and have to get off the computer very soon, but I am looking forward to having a good look tomorrow!
Northamptonshire Marriages 1754-1912
Northamptonshire Baptisms, Marriages and Burials 1532-1812
And don't forget, Rutland is included too as Northamptonshire Record Office holds their Bishop's Transcripts.
Also, the post-1812 databases (links in post #1) have been updated.