We will have an informal discussion of various aspects of M2 brane actions. Some papers to read/browse are: arXiv:0806.1218, N=6 superconformal Chern-Simons-matter theories, M2-branes and their gravity duals. Authors: Ofer Aharony, Oren Bergman, Daniel Louis Jafferis, Juan Maldacena arXiv:0807.1074, A Massive Study of M2-brane Proposals. Authors: Jaume Gomis, Diego Rodriguez-Gomez, Mark Van Raamsdonk, Herman Verlinde J. Bagger and N. Lambert, “Modeling multiple M2’s”, Phys. Rev. D 75, 045020 (2007) [arXiv:hep-th/0611108]. J. Bagger and N. Lambert, “Gauge Symmetry and Supersymmetry of Multiple M2-Branes”, Phys. Rev. D 77, 065008 (2008) [arXiv:0711.0955 [hep-th]]. J. Bagger and N. Lambert, “Comments On Multiple M2-branes”, JHEP 0802, 105 (2008) [arXiv:0712.3738 [hep-th]].