What does "framing" mean here exactly?
"Individual citizens have two powerful roles within this new model. First, they can create their own media, which sometimes competes with professional media producers for attention and is sometimes amplified by those professionals. Second, they can influence the distributors by voting content up and down with their attention, helping amplify some stories and suppressing others. Both of these are possible forms of political activism, and they use a common method: agenda setting and framing."