Open, participatory online learning and scholarship don't necessarily require credentials as the price of admission, but do demand the construction, performance, and curation of intelligible, public, networked identities. Both academia and social networks are, in effect, ‘reputational economies,' but while scholars and educators are increasingly exhorted to go online, those who do often find that their work and efforts may not be visible or understood within institutional contexts. Likewise, as the academic tradition grapples with sea changes in infrastructure and communications, the terms by which scholarship and learning have been defined and legitimized are being unsettled from within. What signals count as credibility among networked educators and learners? What risks and power relations need to be addressed as part of that process?