This distribution represents release 2.0 of OntoNotes, an annotated corpus whose development is being supported under the GALE program of the Defense Advanced Research Projects Agency, Contract No. HR0011-06-C-0022. Top-level documentation of the release is in the file doc/ontonotes-2.0-documentation.pdf with additional documentation files also found in the doc directory. The data directory includes the files with the information for the individual annotation layers (syntactic structure, propositional structure, word sense, coreference, and names) for each of the underlying corpus text files. That information is also merged into a relation database. Included with this release is the package OntoNotes DB Tool v0.92 beta which was used to assemble the database from the original annotation files. Found in the directory ontonotes-db-tool-v0.92b, this tool can also derive various views of the data from the database, and it provides an API that can implement new queries or views. Licensing information for the OntoNotes DB Tool package is included in its source directory. Also included is the package Ontoviewer v0.9 beta which provides a GUI for viewing the various levels of OntoNotes annotation. This utility, with documentation and licensing information, is found in the directory ontoviewer-v0.9b.