The need for family historians to be aware of what marriage indexes are available has long been recognised in the Gibson Guides series, with the first appearing almost 20 years ago. There have been many editions since, some including Census Indexes and Specialist Indexes. Such is the growth of these finding aids that this new edition, the first for seven years, is once again confined just to Marriage Indexes (a new edition of Specialist Indexes will be published shortly). For the first time internet websites and email addresses are featured prominently.