National Council on Teacher Quality:

the portal is the first of its kind-empowering anyone to analyze and compare the day-to-day operations of teachers and schools in a single district or all fifty. You can choose to download the full text of a teacher contract, just the salary schedule, and even the school calendar. Or perhaps you just have a single question and don’t want to wade through lengthy documents. Most likely the answer in our database, easily retrieved in three quick steps using our report generator. The database provides answers to over 300 questions, ranging from salary and benefits to how a teacher gets evaluated–with more getting added all the time.
The more this site gets used, the more powerful it will become. We invite users to contribute knowledge and ideas to our data collection, helping us keep the site current, accurate and fair. Consider this site the central depository for teacher policies. To ensure the accuracy of this database, we will be vetting all user feedback before posting any changes.

The 158 page collective bargaining agreement (7/1/2005 to 6/30/2007) between Madison Teachers, Inc. and the Madison Metropolitan School District is available here [540K pdf]. Additional links and documents can be found here.
Mike Antonuccia has more.