FreeBMD is an ongoing project to transcribe the Civil Registration index of births, marriages, and deaths for England and Wales and provide free Internet access to the transcribed records.
FreeREG aims to provide free Internet searches of baptism, marriage, and burial records, which have been extracted from parish registers, non-conformist records, and other relevant sources in the UK.
GENUKI provides a virtual reference library of genealogical information relevant to the UK and Ireland. It is a non-commercial service maintained by a charitable trust and a group of volunteers.