0000950135-01-501181 10-Q 1 20010331 20010511 FORRESTER RESEARCH INC 0001023313 8700 042797789 DE 1231 10-Q 34 000-21433 1631134 400 TECHNOLOGY SQUARE CAMBRIDGE MA 02139 6174977090 400 TECHNOLOGY SQUARE CAMBRIDGE MA 02139 10-Q 1 b39253fre10-q.txt FORM 10-Q DATED 03/31/01