This document discusses ways to enhance the traditional online public access catalog (OPAC) to make it more relevant and useful to users in a Web 2.0 world. It outlines complaints that some have about OPACs, such as that they are not as good as search engines like Google. It then presents several options for enhancing OPACs, including outsourcing the system, redesigning the interface, or hiding the OPAC behind a discovery layer. It provides specific examples of enhancements from OPAC vendors and third parties, as well as home-grown enhancements that libraries have developed using technologies like JavaScript. The goal is to take advantage of new technologies and applications to update the OPAC and better integrate it with the