Mendeley: Bibliography database, created automatically

Extract citations from PDFs, index your research paper collection, and generate bibliography lists with Mendeley's automatic bibliography maker

Bibliographies, citations, and research paper organization made easy! Mendeley Desktop lets you set up your personal research paper database from multiple sources: Extract bibliographic data from PDFs automatically, grab citations and documents off web databases with a single click, and sync with other reference managers.

http://www.mendeley.com/bibliography-maker-database-generator/