A nice feature is that the individual pages for each work will give a link to an online version if one is available. I'll note that at least one such link is broken, that for Virginia Grace's Amphoras and the Ancient Wine Trade, but the idea is very useful. It is particularly to the School's credit that it has allowed the full text of many of these titles to be read on Google Books; see the link for Jeremey Rutter's The Pottery of Lerna IV.
I hope that this level of access will be quickly available following the publication of the long-delayed Roman Pottery by John Hayes. Jennifer Neils' blurb for this book reads:
The importance of this volume for the archaeology of the Mediterranean cannot be overstated. It will prove invaluable for decades to come for a wide range of scholars dealing with the Roman world. The manuscript is a tour de force: comprehensive, up-to-date, well researched, and well written.It is a large volume whose retail price is set at $150.00. Its importance will be greatly diminished if it is not available at low-cost in digital format.