Also, if you're going to make use of the mailing list parameter archives (just as a bit of additional info for those who aren't familiar with UF-specific terms, parameter sets are the image recipes, and in UF they're known as uprs), it can't hurt to subscribe to the mailing list as well because there's often -- though not always -- commentary that goes with the parameter sets that explains what was done, how and why; puts the uprs in context, as it were : ) As well, a number of formula authors announce new formulas on the list, and give explanations and examples for using those formulas. The UF mailing list is also a good place to ask questions about UF and to get answers; a lot of experienced users subscribe and some of them are quite willing to provide technical help. Instructions for subscribing are at the site where you download UF : ) An additional note (I accidentally sent my earlier post off without really finishing it; just now got an e-bot indicating I'd actually posted something!): also at the UF Resources Page there are links to some other formula collections that aren't actually in the Database, as well as to the mailing list Challenges, each one of which was constructed to teach a specific thing in UF.