For several years libraries, especially larger libraries and research libraries, have been more and more desperately seeking systems and tools to help them manage electronic resources for several years. To date, most libraries seeking support for the full life cycle of electronic resource management (ERM) from selection through purchase, access, license management, and renewal or cancellation, have had to build their own systems, and many have done so. In addition to these homegrown systems, commercial sources have emerged to support ERM: there are those from third party serial and/or serial data vendors, such as EBSCO, SerialsSolutions, and TDNet; and those from major vendors of integrated library systems (ILS), such as Innovative Interfaces Inc. (III), which has an ERM system currently on the market, and other ILS vendors who are in varying stages of developing ERM functionality.[1] This article is an overview of the latter market.