[Air-L] Social media as part of the public sphere?

Hi, I was wondering if someone knows of an anthology or similar devoted to discussing if social media can or cannot be considered part of the public sphere (understood in Habermasian terms). If you have any suggestion, please email me offlist at poveda.oriol@gmail.com, thank you! Oriol -- Oriol Poveda PhD student in sociology of religion Uppsala university, Sweden