EXHIBIT 99.1

                        CERTIFICATION OF CEO PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of TheStreet.com, Inc. (the
"Company") for the quarterly period ended March 31, 2003, as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), I, Thomas
J. Clarke, Jr., Chief Executive Officer of the Company, hereby certify, pursuant
to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, that to my knowledge:

          (1) The Report fully complies with the requirements of Section 13(a)
     or 15(d) of the Securities Exchange Act of 1934; and

          (2) The information contained in the Report fairly presents, in all
     material respects, the financial condition and results of operations of the
     Company.


/s/ Thomas J. Clarke, Jr.
- --------------------------
Thomas J. Clarke, Jr.
Chief Executive Officer
May 15, 2003


This certification accompanies the Report pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the
Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of
Section 18 of the Securities Exchange Act of 1934, as amended.

A signed original of this written statement required by Section 906 has been
provided to TheStreet.com, Inc. and will be retained by TheStreet.com, Inc. and
furnished to the Securities and Exchange Commission or its staff upon request.