When I first heard these terms, I thought of the Seinfeld episodes where George Costanza pretends to be an architect, a profession he considers the most venerable. (I know, my mind makes random connections!)
Persuasion and info architecture actually pertain to the optimum structure of a website, one that has the both the information (content - text, video, audio) and the persuasive layout (call-to-action buttons, key elements relating to eye-tracking patterns, etc.) required to turn web visitors into sales leads, AND Search Engine Optimization embedded into every aspect.
Sound obvious? Not so much…
SEO blogging star Jill Whalen names the following as one of 6 Common Website Mistakes that are Costing you Money
“Navigation that buries important pages within the site architecture. The deeper that pages are buried within the website, the less importance they are given.”
My own experience indicates that lots of companies are making fatal errors when choosing a designer based on bells and whistles - Flash, pretty colors, modern layout - instead of examining the navigation taxonomy, how optimized for search engines the programming is, coding errors to avoid, and - of course - the innate usability of a site from stem to stern.
So take your SEO strategy deep…. deeper….right down to the bones of your site.