I wanted to share this excellent (although long) article at Groklaw, speaking to "software" patents:
1+1 (pat. pending) - Mathematics, Software and Free Speech
Why Software and Patents Need To Get a Divorce
"This article provides a detailed factual explanation of why software is mathematics, complete with the references in mathematical and computer science literature. It also includes a detailed factual explanation of why mathematics is speech, complete once again with references. My hope is that it will help patent lawyers and judges handling patent litigation understand these fundamental truths, so they can apply that technical knowledge to their field of skill."