Reference Management Software and Social Bookmarking

Reference management software, citation management software or personal bibliographic management software is software for scholars and authors to use for recording and utilising bibliographic citations (references). Once a citation has been recorded, it can be used time and again in generating bibliographies, such as lists of references in scholarly books, articles and essays. The development of reference management packages has been driven by the rapid expansion of scientific literature. Read more at
http://en.wikipedia.org/wiki/Reference_management_software

A comparison of reference management software is available at
http://en.wikipedia.org/wiki/Comparison_of_reference_management_software

Social bookmarking (on the other hand) is a method for Internet users to store, organize, search, and manage bookmarks of web pages on the Internet with the help of metadata, typically in the form of tags that collectively and/or collaboratively become a folksonomy. Folksonomy is also called social tagging, “the process by which many users add metadata in the form of keywords to shared content”. Read more at
http://en.wikipedia.org/wiki/Social_bookmarking