It's not often that I visit, but the folks here tend to have answers I don't come up with on me own - which is always appreciated!
On to the question...
Visit: Learning Zone | Conversion Rate Experts
See the little box that pops up in the bottom right hand corner after a few seconds? How is this done? I took a quick glance at the "view-source:http://www.conversion-rate-experts.com/learning-zone/" but I wasn't able to locate it there.