For those who might be struggling to ensure their OAuth signatures are being generated correctly, this guide provides more hand holding with the process than the specification. It includes custom forms where you can fill out all the details of your request and see what the signature and its related data *should* be.
http://www.hueniverse.com/hueniverse/2008/10/beginners-gui-1.html -- Marcel Molina Twitter Platform Team http://twitter.com/noradio