<PAGE>
EXHIBIT 23.3
[IDC LETTERHEAD]
DISCLOSURE FORM
IDC grants Kinzan, Inc., permission to disclose select data of IDC's
publication, THE GLOBAL MARKET FORECAST FOR INTERNET USAGE AND COMMERCE, BASED
ON INTERNET COMMERCE MARKET MODEL VERSION 6.0 (#22216, June 2000) in an S-1
registration statement. Permission is granted to Kinzan, Inc. to cite IDC data
in an external document pursuant to the contracted relationship between IDC and
Chase H&Q.
It is understood by both IDC and Kinzan, Inc. and Chase H&Q that the
information will not be sold. It is further understood that IDC will be credited
as the source of publication; and that the original date of publication will
also be noted.
/s/ ALEXA MCCLOUGHAN 6/27/00
-------------------------------------------------- ----------
Alexa McCloughan, Vice President Date
International Data Corporation
/s/ SUSAN SEAGREN/CHASE H&Q 6/28/00
-------------------------------------------------- ----------
Requesting individual, company Date
