Familysearch website is a free resource that has information on records of birth, baptisms, marriages, burials and death (BMB/D) resources from the world. Many entries are information donated by members of the church. Newer records have been extracted by a team of volunteers. This process is still a working process of which Familysearch are always looking for volunteers to index. If you interested in volunteering, you can apply through this link http://www.familysearch.org/eng/indexing/frameset_indexing.asp. Follow the instructions on screen and in no time you are good to go.
In the meantime, there are millions of records and many thousands of images of registers and certificates uploaded for Jamaica. At present you can view registers and certificates for parishes Clarendon, St Ann, St Andrew, Kingston and Trelawny. Information is available for all parishes that contains a combination of sources such as individual contributions and from the extraction programme.