The UltraFractal mailing list often has parameter sets posted to it. However, due to the vagaries of internet email, there was often a variety of editing or careful copy/pasting you had to do in order to get the parameter set in a format that UltraFractal liked. I created a script that processes selected mail messages to extract out the UPR file in a form that UltraFractal likes. Its much more reliable than what I was doing by hand. The results of the script can be seen at the UltraFractal Parameters RSS feed.
Update: The public feed has been turned off. See the comments below.