ABSTRACT
Gold open access (OA) journals are multiplying at a high rate across many disciplines as major publishers launch new titles to complement their traditional subscription-based titles. This is on top of the many independent Gold OA titles which are being produced by higher education, societies, and many other special interest groups. The number of Gold OA journals covered in abstracting and indexing (A&I) and aggregator databases has shown substantial penetration in these services. This coverage varies widely by discipline but the inclusion of OA content into traditional library services means that quality OA content can be more easily found using the products and services licensed and promoted by libraries and consortia.