Do WordPress blogs allow embedding to use new feature of embedding Facebook public posts?
Currently only few brands or publishers can embed their Facebook Posts. You have to wait for it.
Only some popular news sites(CNN, Huffington Post, Bleacher Report, PEOPLE and Mashable) are able to post their public feeds onto their sites.
See the article -http://www.wired.com/gadgetlab/2013/07/embeds-facebooks-real-public-offering/
One can use WordPress Facebook Post Embed WordPress plugin so that anyone can post the feeds into their sites.
few select publications will be able to embed Facebook posts
Pl see , Can posts be shared on any webpage as mentioned at : http://ustandout.com/facebook/how-to-embed-a-facebook-post-on-your-website
i think it says: onto your website, embed a Facebook post on your website
perhaps later other opportunities can be available.