Homogeneous catalysis in supercritical fluids has changed, since the mid-1990s, from a new and essentially unexplored field into a mature field with a considerable body of information. Most of the reported studies have taken place since the last comprehensive reviews in 1999. This review presents comprehensive tables of the systems which have been studied in supercritical fluids, along with a brief description of the recent trends in the area. (c) 2006 Elsevier B.V. All rights reserved.