Exhibit 32.1

                                  CERTIFICATION

In connection with the periodic report of Glowpoint, Inc. (the "Company") on
Form 10-Q for the period ended June 30, 2004 as filed with the Securities and
Exchange Commission (the "Report"), I, David C. Trachtenberg, Chief Executive
Officer of the Company, hereby certify as of the date hereof, solely for
purposes of Title 18, Chapter 63, Section 1350 of the United States Code, that
to the best of my knowledge:

      1) The Report fully complies with the requirements of Section 13(a) or
15(d), as applicable, 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 at the dates and for the periods indicated.

This Certification has not been, and shall not be deemed, "filed" with the
Securities and Exchange Commission.

Date: August 16, 2004


/s/ David C. Trachtenberg
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David C. Trachtenberg
Chief Executive Officer


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