RLG's ILL Manager Innovative's ILL module ILLiad (distributed by OCLC now) Pigasus CLIO
Interlibrary Loan Automation Information from the Library Technology site.
ILL Manager Innovative ILL ILLiad Peer to Peer (includes OCLC & RLIN) OCLC, ARTemail, OCLC, RLIN, DocLine And for document managemt/deliver to patron