United Kingdom Serials Group
- Exists to encourage the exchange of ideas on printed and electronic serials and the process of scholarly communication. Events, feedback, members, committees.
- http://www.uksg.org/

The 200 Club
- Peer network of senior decision makers in the knowledge and information market. Objectives, events, news, internal discussion groups, list of steering group members, press releases.
- http://www.the200club.org/

Society of College, National and University Libraries
- SCONUL aims to promote excellence in library services in higher education and national libraries across the UK and Ireland. Topical issues, library buildings, publications and statistics, activities, graduate trainee scheme, links to member sites.
- http://www.sconul.ac.uk/

British Association of Picture Libraries and Agencies
- Includes details of membership, news, events, online database, magazine, and an overview of the industry.
- http://www.bapla.org.uk/

School Library Association
- Mission to support all those committed to the promotion and development of school libraries and information literacy. Membership, publications, training courses and regional branch details
- http://www.sla.org.uk/

City Legal Information Group
- London organisation formed to support legal information professionals, offering networking and training events. Details of membership, newsletter, calendar, viewpoints, resources, committee.
- http://www.clig.org/

City Information Group
- London based organisation for those interested in or working with business information. Membership details, committee, newsletter, events, sponsorship, yearbook, links.
- http://www.cityinformation.org.uk/

CILIP - Career Development Group
- Mission is to support, represent and promote the development needs of new, student and existing members of the library and information profession.
- http://www.careerdevelopmentgroup.org.uk/

British Association of Information and Library Education and Research
- Aims to help focus the evolution of the field of information and library studies. Membership includes teaching and research staff of all information and library schools in Britain. Member list, events.
- http://www.bailer.ac.uk/

EALCC - East Anglian Librarians Consultative Committee
- Eastern Branch of CILIP, activities in the region, including Information Services, Local Studies, Public Libraries, Youth Libraries and Higher Education Groups of CILIP as well as the Cambridge Library Group and East Anglia Online User group.
- http://www.ealcc.org.uk/

SLAINTE - Scottish Libraries across the Internet
- Aims to provide access to information for and about the library and information community in Scotland. Site maintained by Scottish Library Association and Scottish Library and Information Council (SLIC). Includes directories of names, events, publications
- http://www.slainte.org.uk/

Aslib, The Association for Information Management
- Services include consultancy, training and recruitment. Various publications, including the monthly journal, Managing Information. Membership information, plus details of courses and conferences.
- http://www.aslib.co.uk/

Chartered Institute of Library and Information Professionals
- Professional body formed from the merger of the Institute of Information Scientists (IIS) and the Library Association (LA). Includes membership, qualification and chartership details, publications, news and recruitment LISjobnet and INFOmatch.
- http://www.cilip.org.uk/