I don't know much about the Canadian ASIN (Atlantic Scholarly Information Network) project, but they do have a blog with some info. (Prepare for acronym fever.)
The CAUL [Council of Atlantic University Libraries] have begun implementing the ASIN Portal which includes single-signon authenticated access to the combined licensed and public resources of the CAUL libraries. The [Atlantic Provinces Library Association (APLA) conference] session will cover the individual components of the Portal including federated/broadcast searching, OpenURL resolution, Relais document delivery and Subject Rooms which are all maintained by the Sirsi’s Rooms context management system.
Via Stephen on CISTI Architecture internal bliki.