Exhibit (b)



         Certification Pursuant to Section 906 of the Sarbanes-Oxley Act

         Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, each of the
undersigned officers of the Jacob Internet Fund Inc., does hereby certify, to
such officer's knowledge, that the report on Form N-CSR of the Jacob Internet
Fund Inc. for the period ended February 28, 2006 fully complies with the
requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934,
as applicable, and that the information contained in the Form N-CSR fairly
presents, in all material respects, the financial condition and results of
operations of the Jacob Internet Fund Inc. for the stated period.


 /s/ Ryan Jacob                           /s/ Francis Alexander
- -------------------------------------    ---------------------------------------
Ryan Jacob                               Francis Alexander
President, Jacob Internet Fund Inc.      Treasurer, Jacob Internet Fund Inc.

Dated:   5/3/06
      -------------------------------


This statement accompanies this report on Form N-CSR pursuant to Section 906 of
the Sarbanes-Oxley Act of 2002 and shall not be deemed as filed by the Jacob
Internet Fund Inc. for purposes of Section 18 of the Securities Exchange Act of
1934.