I was listening to another podcast about Internet Marketing and they were talking about a new plugin for wordpress that not only turns it into a membership site, but also has an option to time release material.
This is very cool as a member could sign up for a membership, get access to your entire blog, read it, and then unsubscribe.
It looks very simple as you simply add some plus signs (more plus signs for a higher level of membership type (bronze, silver, gold, and platinum) and the plugin protects that information. This way you can have a tease of the visitor and then when they go to read the rest, they are prompted to subscribe.
Now I know you may think, does this stop Google from seeing my content? My seo will go down. Well the really cool thing is there is an option that allows a visitor one free click through. So a human could read one article (and this may prompt them to subscribe even more). If you're Google, your spiders can come through and index the content so your SEO efforts are in place.
It integrates with everything (more or less), Paypal, 2checkout, ejunkie, idevaffiliate, rapid action profits, and aweber. It has built in tools to help you track if anyone is giving away your premium content.
I personally haven't used this system, but if it does everything it says it does it looks like a great value. Pricing starts at FREE, and go all the way up to $295 for unlimited domains with the typical purchasing (my guess) is the “Professional” at $149.
Check it out at memberwing.com