Two good sites on the situation in Oaxaca
For monolingual English readers: Falling Into Incandescence. Scott Campbell is a veteran alt-media writer and reporter living in Oaxaca. His old site, Angry White Kid, was well-known for offering reasoned rebuttals to the usual talking points of state policies that drive the mainstream narrative in so much media coverage.
For Spanish-language readers: Oaxaca Politico. Think of it as “Animal Politca” (by far the best read news portal in Mexico) with a regional focus.