As of the new year, the Wisconsin State Law Library changed their document delivery fees. From WSLL @ Your Service:
For well over 10 years our minimum charge for delivery by fax, mail or email had been $3.00 for anything up to 4 pages. The new minimum charge of $15.00 covers delivery (by email, fax or mail) of up to 20 pages of material from print-based sources, or email delivery of any one document that’s already in digital format, regardless of the number of pages. Print-based documents longer than 20 pages are billed at 75 cents per page. These fees are all subject to sales tax where applicable.
For a list of other libraries and organizations offering document delivery, including the UW Law Library, see our Guide to Wisconsin Legal Information Sources.