Forrester Research, Inc. (Nasdaq: FORR) today announced Investor Day 2009 for sell-side analysts and institutional investors on Tuesday, June 16, 2009 at its corporate headquarters in Cambridge, MA. While attendance to the event is by invitation only, Investor Day will be webcast live on www.forrester.com (http://www.thomson-webcast.net/us/dispatching/?event_id=44f2fbfabde5c654d7ce166310f4d4b6&portal_id=9bdc51a02efc622e94e3b31134d367e2) and a replay will be available until September 16, 2009.