X0303 4 2008-08-26 0 0001095315 PFSWEB INC pfsw 0001044321 MARXE AUSTIN W & GREENHOUSE DAVID M C/O SPECIAL SITUATIONS FUNDS 527 MADISON AVENUE, SUITE 2600 NEW YORK NY 10022 0 0 1 0 Common Stock 2008-08-26 4 P 0 3000 3.37 A 1582822 I By Limited Partnership Common Stock 2008-08-27 4 P 0 100 3.3704 A 1582922 I By Limited Partnership Common Stock 2008-08-28 4 P 0 37000 3.2307 A 1619922 I By Limited Partnership This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (QP), Special Situations Cayman Fund, L.P. (CAY) and Special Situations Private Equity Fund, L.P. (PE), respectively . 955,499 shares of Common Stock are owned by QP, 278,100 shares of Common Stock are owned by CAY and 386,323 shares of Common Stock are owned by PE. The interest of Marxe and Greenhouse in the shares of Common Stock owned by QP, CAY and PE is limited to the extent of his pecuniary interest. Austin Marxe 2008-08-28 David Greenhouse 2008-08-28