ILTER is a 'network of networks', a global network of research sites located in a wide array of ecosystems that can help understand environmental change across the globe. ILTER's focus is on long-term, site-based research and monitoring.
The Drupal Ecosystem Information Management System (DEIMS) is an online searchable database of ILTER sites: https://data.lter-europe.net/deims/
Details of the LTER networks that are members of ILTER can be found at: https://www.ilter.network/?q=content/networks-and-regions
eLTER H2020, which runs until 2019, will serve as the flagship for the further development of the Long-term Ecosystem Research infrastructure and community in Europe http://www.lter-europe.net/elter/about