Written by a practitioner, this book explores the changing nature of cataloging in the aftermath of e-journal invasion. It traces the development of the issue by examining changes in AACR2 and CONSER rules, focusing on the revision of AACR2, Chapter 12, and emergence of the concept of 'Continuing Resources'. The book analyzes challenges of e- journal cataloging that stem from an ever-growing number of on line publications and aggregator databases. Libraries race to keep up with cataloging and record maintenance produced a broad market for commercial MARC services. In examining a variety of vendors' MARC products, the book outlines dilemmas encountered by libraries when considering acquisitions of such services. It analyzes the complexities of incorporating commercially produced cataloging into a local database, and offers practical solutions to the most common questions in the process. The book concludes with a look into the future of e-resource cataloging from technical and conceptual standpoints.