CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS We consent to the reference to our firm under the caption "Experts" in the Registration Statement on Amendment No. 1 for Form S-3 on Form SB-2 and related Prospectus of E-Rex, Inc. dated November 14, 2002 and to the incorporation by reference therein of our report dated April 7, 2002, with respect to the financial statements of E-REX, Inc., included in its Annual Report on Form 10-KSB/A for the year ended December 31, 2001, filed with the Securities and Exchange Commission. November 19, 2002 /s/ Parks, Tschopp, Whitcomb & Orr, P.A. - ------------------------------------------- Parks, Tschopp, Whitcomb & Orr, P.A. Certified Public Accountants