Research Papers - University of Kansas
An extensive step-by-step guide. Very useful.
Writers' Handbook: Research Papers - University of Wisconsin
A series of quick-check bullet points. Less comprehensive than the Kansas page, but quicker to read and easier to get an overview of what's needed.
Political Science - University of North Carolina at Chapel Hill
Another overview page that nicely combines writing and discipline specific concerns. This university has a range of useful pages for various disciplines, and also good links on other writing issues. Check out the menu bar on the right hand side of the page.