1) the airport, they even have little cubicles; parking is not free, however 2) if you have an AT&T/SBC DSL account, there are a bunch of places, including the FedEX/Kinkos, and Starbucks, and the UPS package store, where you can connect using your DSL login.
otherwise, there are a few kafe houses on college ave, but they all of course expect you to purchase their products.
Cullivers, if you are willing to sit in your car and grab it. Perkins as well. Other then that, not really sure. The Bar on the North side had free wifi as of last year. I haven't been there since thou.
I found this link, that should help you out. http://www.openwifispots.com/FinderDirectoryCity.aspx?City=Appleton&State=WI Coffeeshop / Cafe Thee are 29 listings here are a few Atlanta Bread Company - Appleton, WI 54913 Atlanta Bread Company - Appleton, WI 54915 Atlas Coffee Mill - Appleton, WI 54911 Brewed Awakening - Appleton, WI 54911 Dunn Bros Coffee - Appleton, WI 54914 Dunn Bros Coffee - Appleton, WI 54913 Harmony Cafe - Appleton, WI 54911
and these sites from here: http://www.wififreespot.com/wi.html Appleton Atlas Coffee Mill City Center Shopping Mall - lobby area - 100 N. Appleton St. Brewed Awakenings - 107 W. College Ave. Atlanta Bread Co. - 650 North Casaloma Drive - 920-735-1540 Dunn Bros. Coffee - 1835 East Edgwood Drive Atlanta Bread Co. - 650 N Casaloma Dr - 920-735-1540 Atlanta Bread Co. - 3719 E Calumet - 920 882 3020 Harmony Cafe - 124 North Oneida Street - 920-734-2233 Copper Rock Cafe - 210 W College Ave - 920-882-9336 Pilgrim's Cafe - 233 E College Ave - 920-831-6530 New York New York Fresh Deli - 1853 N. Casaloma Drive - 920-734-DELI (3354) The Bar - The Avenue - 427 W. College Avenue - 920-882-0690 The Bar - Lynndale - 2435 W. Nordale Avenue - 920-954-0888 West Wisconsin Diner - W. Wisconsin Ave. Appleton Public Library - 225 N Oneida St - 920-832-6173