Hi Jill
1 - We do not. We do provide automated conversion to AMP of the Mailchimp standard plugin. You would need to do a bit of custom coding to AMPlify the AWeber form. How do you currently integrate aWeber with your site? a plugin?
2 - We do not. I am not aware of any payment system on AMP pages themselves, as AMP does not allow any form of javascript which makes traditional payment using Stripe for instance impossible as is. The AMP project is working on the new "Payment API" integration but that's not ready yet - and probably not integrated by WooCommerce either.
What we do, we AMPlify all the catagories, products, search, etc pages. We also provide a "mini-cart" that's updated live on AMP pages. Then when user clicks on "Check out", they are sent to the standard HTML checkout page that already exists on your site.
Have you checked
our WooCommerce demo site? it's a standard install of current WooCommerce with no customization except for colors.
Please have a look
at this page which is a variable product: no javascript on AMP pages means that interactions normally have to be custom coded and we have managed to handle automatically most of the option selection process.
3 - Those which create content where users can benefit from the speed of AMP on mobile devices. On a commerce site, you want them to browse your categories, or search, and view your product pages all AMP. Then regular articles, blogs, etc are a given.
Anything that has interaction, relies on javascript, is going to be either more difficult to convert or give degraded results. WHat I mean by that is that "automated conversion" will strip some parts for instance. So those types of content can be AMPed but they will require more efforts from you.
Best regards