Hi Moz and Moz fans, We are looking to add a client portal to the website. Basically, I haven't found too much on this with regard to SEO. The idea would be that certain parts of the website would be hidden under a pay wall and for subscribers, they would be able to see all content. I am wondering if anyone has any experience with that and what SEO considerations to take into account. One thing we are particularly concerned about is how Google will index the portions of the website behind the pay wall, if at all. Obviously, we would rather that they don't index it, so that people can't find a way to get to the info without paying. I would imagine it would have to do with the type of coding, however, I am not a coding guru, so I am not 100% on that. Anyway, anyone that has any experience in this kind of thing and can comment on this at all, any comment is welcome. Also, any documentation that could be helpful would be welcome too. Thanks

Just a question (or questions) I have wondered about. What's the difference, besides the actual encoding, between the three? Why have three? Why not just the one? Seems to me that Microdata is the easiest, but maybe I am wrong. Is there a reason to use one versus another? I have not found anything explaining this on schema.org - I suppose this is just a discussion versus getting one right or wrong answer. I am just curious of the opinions of people in the SEO MOZ community. Unless of course there is one answer. I'll take that too.