I’ve been getting most of my updates on M23’s attacks near Goma from Twitter (in what’s been quite a week for social media and conflict). English-language reporters on the ground in Goma include Melanie Gouby, Phil Moore, Gabriel Gatehouse and Simone Schlindwein. Jonny Hogg is reporting from Kinshasa, and Desiree Lwambo appears to be near Goma but is keeping mum for the moment. Other knowledgeable people providing analysis from outside the DRC include Laura Seay, Jason Stearns, Koen Vlassenroot, Mvemba Dizolele, Tristan McConnell, Christiane Kayser, Christopher Ethuin, and the pseudonymous Digital Djeli.
The best non-Twitter resource I’ve seen is Radio Okapi, the UN-sponsored Congolese station (in French). The UN news site includes limited information on MONUSCO’s response to the conflict, and Kabila’s site has a similarly limited set of articles on the Congolese government’s response. M23’s perspective is provided at their website.