Here is a much better explanation what “sea-lioning” refers to in relation to the webcomic critiquing Gamergaters.
Nakamura’s recommended readings are linked to on the overview page. I also added a folder on the resources page with lots of additional GamerGate explanatory readings, timelines and videos that I started with a student (and gamer) doing a research project on the topic.
Continuing on the theme of hostile (mostly male) online factions named after cute animals, there is this great piece by Jeet Heer about the “Sad Puppies” and “Rabid Puppies” who campaign against the incursion of women, people of color and queer writers in the traditionally male-dominated genre spaces of science fiction awards.