Powerpoint presentation introducing concept and methodology of Portico service.

Description of Portico's methodology.

Good basic overview of issues in e-journal preservation.

Uses LOCKSS as an exemplar of digital preservation principles. Argues that each system should "disclose" its stratefies for meeting common preservation threats.

A short overview of various e-journal preservation projects.

Examines several philosophical ways to think about digital preservation.

"This report summarizes a review of 12 e-journal archiving programs from the perspective of concerns expressed by directors of academic libraries in North America. It uses a methodology comparable to the art of surveying land by "metes and bounds" in the era before precise measures and calibrated instruments were available. It argues that current license arrangements are inadequate to protect a library's long-term interest in electronic journals, that individual libraries cannot address the preservation needs of e-journals on their own, that much scholarly e-literature is not covered by archiving arrangements, and that while e-journal archiving programs are becoming available, no comprehensive solution has emerged and large parts of e-literature go unprotected."

Good overview of the threats digital preservation programs must address, with examples from the British Library and LOCKSS.

Compares two methods of ejournal content preservation:

* migration (in which the content is changed from its original form in order to keep up with software and hardware developments

* emulation (in which the content remains, as closely as possible, in its original form, including the environment in which the object was originally presented)