Argo is an environment facilitating the open access to bibliographical information resources which are available in Greece as well as abroad, with simple, medium and advanced search. It appeals mainly to users of the scientific, research and educational communities, seeking information in different thematic sectors, as well as to librarians, giving them the facility to retrieve and acquire bibliographical records.

Zephyr is a portal, designed to help locating the available books, journals and other material in the catalogues of the Greek Academic Libraries. It offers a user friendly environment and its structure is based on the Z39.50 protocol. Zephyr was created by the Information and Technology Services Unit of the University of Crete Library. The basic concept during planning and implementation was to make an integrated environment for bibliographic information search and retrieval, using the databases of the Greek Academic libraries. Emphasis was given to the development of advanced services to the users such as registering for their Zephyr personal page, in order to be able to save selected searches and records etc.

Through the HEAL-Link Search you can perform concurrent search to the electronic sources of HEAL-Link with access to the full text, the Hellenic Academic Libraries Union Catalog as well as selected websites without having to perform a separate search to each source.