Yup; the Russian hacker groups are supposedly independent, Anonymous is supposedly independent, but there's probably some pretty big overlaps in Venn diagrams if you look closer.
I used to be on an IRC server that ran a honeypot to then find actual compromised servers and check them out - IIRC there were Ecuadorean government servers, and a load of routers in India, etc.
Most of it was just malware analysis and people creating pubstro servers for fun with different communities.
its like superfriends, everyone has thier own gig and support each other when crossing paths, but the hall of justice/legion of doom is the muster point when SHTF