[Air-L] Scales for social media participation akin to "experience"?

Hi AoIR-ers! Does anyone know of any scales that measure the "experience" of a user that participates in social media platforms (this could also cover things like older online communities and online MMOs). By experience, I'm talking about familiarity with a platform/community's technical features, social norms, folk history, etc. This might cover things like relative skill on the site, but I'm not interested in use in a general or beginner sense (but perhaps use of advanced features as a marker of being experience). If you email me off-list, I can compile everyone's references. Thanks for the help! Alex --- Alexander Leavitt PhD Student USC Annenberg School for Communication & Journalism http://alexleavitt.com Twitter: @alexleavitt