EXHIBIT 23 CONSENT OF EXPERT We hereby consent to the incorporation by reference in the March 28, 2000 filing of E-Rex, Inc. on Form S-8 of our report appearing in the Company's Form 10-SB registration statement dated September 13, 1999. /s/ Jack Oleski - ------------------------------- Jaak (Jack) Oleski Certified Public Accountant 270 North Canon Drive, Suite 203 Beverly Ells, California 90210