Thousands of business executives attended the Small Business Times BizTech Expo at Wisconsin State Fair Park today. Several prominent authors, consultants, government officials, business executives and civic leaders made appearances at the Small Business Times booth, including Milwaukee County Executive Scott Walker, University of Wisconsin-Milwaukee chancellor Carlos Santiago, State Sen. Lena Taylor, Milwaukee County Supervisors Gerry Broderick and John Weishan Jr. and Milwaukee Alderman Robert Bauman. The BizTech Expo will continue Thursday.