The ICO has confirmed in its July newsletter that valid FOI requests can be made via Twitter and that public authorities with Twitter accounts should plan for the possibility of receiving requests via "@mentions".  Given the 140 character limit imposed by Twitter, the ICO suggests that a response could be provided by posting the information on the authority's website and then tweeting a link. The ICO was not asked to comment on Facebook, but there seems no reason to think the position would be any different.  The Scottish Information Commissioner has not issued any guidance on this topic, but as the requirements for a valid information request under the Freedom of Information (Scotland) Act 2002 are virtually identical, we would suggest that the guidance is highly likely to apply to Scottish public authorities.