Link to July 31 Oshkosh Northwestern article, "Wobbly economy prompts counties to take another look at sales tax".
Excerpt: Since 1986, every county in Wisconsin has had the option of imposing a half-percent sales tax in addition to the state’s 5 percent tax. Seven of the holdouts form a contiguous block. They are Calumet, Fond du Lac, Kewaunee, Manitowoc, Outagamie, Sheboygan and Winnebago counties. Most have toyed with and rejected the idea. Among the most adamant opponents is Manitowoc County Executive Bob Ziegelbauer.