CSILE functions as a collaborative learning environment and a communal database which lets students generate 'nodes' containing an idea or piece of information relevant to the topic under study.
System for identifying and exchanging intellectual property in the digital environment; excellent website: especially FAQ section, Glossary of Terms and 169 page DOI Handbook
M. Paukkeri, I. Nieminen, M. Pöllä, and T. Honkela. Coling 2008: Companion volume: Posters, page 83--86. Manchester, UK, ACL, Coling 2008 Organizing Committee, (August 2008)
R. Basili, and M. Pazienza. Information Extraction A Multidisciplinary Approach to an Emerging Information Technology, volume 1299 of Lecture Notes in Computer Science, Springer Berlin Heidelberg, (1997)