Welcome to the official website of Zeta Phi Beta Sorority, Incorporated in the Illustrious State of Illinois! PLEASE VOLUNTEER WITH THE STATE OF ILLINOIS!!!! The time is here to raise funds for March of Dimes!! Click on the image to find out more. Centennial VideoView the State of Illinois' Centennial Launch Video! Illustrious Illinois MembersVisit the Members Only Page for Important Documents and News!Contact your Basileus for Login Information.