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CONSENT OF ROBERTSON STEPHENS, INC.
We hereby consent to the inclusion of and reference to our opinion dated
November 1, 2000 to the Board of Directors of NetCreations, Inc.
('NetCreations') in the Registration Statement on Form S-4 (the 'Registration
Statement') of DoubleClick Inc. ('DoubleClick'), covering common stock of
DoubleClick to be issued in connection with the proposed business combination
involving NetCreations and DoubleClick. In giving the foregoing consent, we do
not admit that we come within the category of persons whose consent is required
under Section 7 of the Securities Act of 1933, as amended (the 'Securities
Act'), or the rules and regulations promulgated thereunder, nor do we admit that
we are experts with respect to any part of the Registration Statement within the
meaning of the term 'experts' as used in the Securities Act or the rules and
regulations promulgated thereunder.
/s/ Robertson Stephens, Inc.
San Francisco, California
November 1, 2000
