The Wisconsin Department of Revenue web site provides information about filing taxes, provides pdf versions of tax forms, and allows for online filing of taxes for certain tax filers.
This page from the Wisconsin Department of Administration's Division of Executive Budget & Finance provides fiscal statements and financial reports for the operation of Wisconsin state government.
This is the official University of Wisconsin system annual budget, including the salaries of individuals employed throughout the system.
This website provides a comprehensive database of Wisconsin budget expenditures for Wisconsin State agencies, the legislature, the courts and the University of Wisconsin system. The current database covers expenditures from 2008 until the current month.