Facts on File provides a good amount of free promotional materials for the database Science Online, which is available statewide to all public libraries.  You can check them out at:

http://www.factsonfilepromo.com/drc/promomaterials.htm#Science%20Online

Don't forget that other promotional materials, tutorials, screencasts and more can be found in the OPLIN Community Toolbox at http://oplin.org/community-toolbox.  Also, if you have anything you'd like to contribute to the Community Toolbox, please let us know by emailing OPLIN Support at support@oplin.org.