1. Ayers, M. D. (2003). Comparing collective identity in online and offline feminist activists. In M. McCaughey & M. D. Ayers (Eds.), Cyberactivism: Online activism in theory and practice (pp. 145–164). Bristol: Taylor and Francis

*Peer reviewed, Historical Context 
* The source fits into this category because the author Emiliano uses this source to explain his own historical context behind digital social movement studies 

2.Tuckman, J. (2012, June 26). Mexican media scandal: Secretive Televisa unit promoted PRI candidate. The Guardian. 

*popular source (used as a primary)
* This source is part of the actual object of the protest. Emilio cites it when he talks about what the network was doing 

3.García, R. G., & Treré, E. (2014). The #YoSoy132 movement and the struggle for media democratization in Mexico.

*peer reviewed scholarly on the specific protest
*this source was directly talking about what the yo soy movement was 

4. della Porta, D., & Diani, M. (2006 [1999]). Social movements: An introduction. Malden, MA: Blackwell.

*theoretical peer-reviewed scholarly 
* He gives the three mechanisms, which elaborates on the ways in which actions create identity