Restricting # views & actions in lieu of pay

If you have visited a site like FT.com (or the Nytimes.com I think) they allow you some number of views of articles free before you hit their paywall. Is it possible to set some # of views before a paywall is hit, or registration required?

I guess I am wondering if in lieu of payment if other actions (facebook like, email signup) can be used to provide some level of membership.

Can the membership restrict a certain number of page views per month?

For example could I use s2member to cause people to need to register their email (free) to bump their monthly view limit beyond 2 articles, and then have them later need to pay to be able to submit and read comments.

I’m afraid those aren’t possible yet. With some custom scripting, you could probably achieve them. This article may help: Knowledge Base » Changing Roles/Capabilities via PHP

Can the membership restrict a certain number of page views per month?

May be possible with the coming major release, to be released soon.