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VIVO is publicly available as an open-source project under the BSD Software License (http://www.opensource.org/licenses/bsd-license.php) and available on SourceForge at http://vivo.sourceforge.net; the VIVO 1.1 ontology is also publicly available at http://vivoweb.org/ontology/core. Vivoweb.org also serves as the public home for information about the project, educational and support materials, contact information, and direct software downloads.