Well the simple reply to this question is, no. When you give someone something free, they expect something for free.
But let’s take a closer look to make sure. Personally I like to find good info online, in most cases I am never giving my email address, at least not my real one… but that being said, I will return to GOOD information that I find helpful and insightful. I think if you are going to post free picks on your website, I think it is important to make it open and available without any type of barrier.
In most cases on the web, you are going to get-out what you put in… If you use the free pick as a tool to get in the search results, it will pay off in the longrun. If you are using it as a lure, to try spring sales, it no likely to happen. The mathematical conversion is very long to make this type of sale for search targeted traffic.