Estonian Libraries Network Consortium (ELNET Consortium) is, as specified in its Bylaws, a non-profit organisation representing the common public interests of libraries.

The main areas of activity of the ELNET Consortium are: 

• management and development of the shared online catalogue ESTER and the database of Estonian articles, and the integrated library system Sierra/Millennium,
• management and development of the Estonian Subject Thesaurus,
• coordination of the acquisition of electronic publications between the member libraries of the Consortium,
• initiation and coordination of various cooperation projects.