Social networking sites (SNSs) like Facebook are widely used and have been broadly studied but despite years of investigation, accessibility complaints from individuals with visual impairments continue to persist. To investigate this issue we have conducted a quasi-ethnographic usability evaluation of Facebook involving blind participants, the mobile interface ( m.facebook.com ) and the JAWS screen reader on a desktop computer; a configuration that has been suggested in the related literature but insufficiently investigated. Six participants attempted 18 tasks designed to be representative of common SNS user activities. Of the features evaluated participants were most severely challenged by the process of creating a user profile and identifying other users with whom to establish relationships; two of the three core activities commonly viewed as characterizing SNSs. These findings suggest that despite recent progress additional research may be needed to make Facebook truly accessible for individuals with visual impairments.