Open Graph Actions for Komento

Not yet, unfortunately. It's a goal of ours for this summer. We actually have a separate site, Social Debug , that we're considering implementing a forum solution on. EasyDiscuss is a likely choice for that site, and we'd like to have Open Graph Actions for that as well.

Sorry I can't be more specific on when it would be made available and isn't out yet. There's a lot of changes going on with all of the social networks right now that we're trying to keep up with.. they all decided to make big changes within the same few weeks. Once we're out of this thicket and get the 6.1 release (which is going to be awesome) in early June, we'll be focused on the features for 6.2, which very likely will include Komento integration.

I hope that helps answer your question,
Alex

The list is somewhat spread out in our documentation based on extension. In general, we support actions for the following extensions:
Joomla Content
K2
JomSocial
EasyBlog
JReviews
There's also the "Custom" action ability where you can create a button on your site, like "I ate" and put it on a recipe page. Then, the user can say they 'ate' something from your site.

I hope that helps, but if you have any questions, just let me know!

Thanks,
Alex