X0202 4 2006-12-28 0 0000801338 Guideline, Inc. GDLN 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 2006-12-28 4 P 0 37000 1.5 A 4213590 I By Limited Partnerships 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. (Cayman) and Special Situations Private Equity Fund, LP (PE), respectively. 1,647,695 shares of Common Stock and 551,645 Wts are held by QP, 587,900 shares of Common Stock and 200,000 Wts are held by Cayman and 915,200 shares of Common Stock and 311,150 Wts are held by PE. The interest of Marxe and Greenhouse in the shares of Common Stock owned by QP, Cayman and PE is limited to the extent of his pecuniary interest. Austin W. Marxe 2006-12-29 David M. Greenhouse 2006-12-29