In the Dark Age there's Herrmans AG, said to control a major portion of Skye's press outlets. Sword of Sedition also gives us:
Free Radio, New Avalon
Stellar Associated, New Earth
ComStar InterStellar Associated, Terra
Terra Fashion Trends (a magazine)
Terra Today
Dynasty Daily, Liao
Avanti Free Press, Nusakan
Imminent Crisis gives us:
The Real Deal, Marik, FWL (holo newsmag)
Atreus Free Press
Taurus Broadcasting Company
I always thought Chatterweb users were everyone who wasn't a warrior.
There are warriors too, though it seems they often keep to their own chatrooms.
That always confused me. ChatterWeb seem to be form of Internet, with chat rooms. Yet. It can't be real time interstellar wise (unless their version of the HPG Network is insanely better). I remember fluff where different Clan members were chatting together, when a Inner Sphere person somehow got in and was booted off for being a noob/wannabee.
Is there a source describing how the ChatterWeb works? Who normally has access to it? Merchants Caste?
Yes that particular one was hilarious.
It seems there are chatrooms for Merchants as well as Warriors both; probably like any forum there are lots of different chatrooms covering different topics.
I can't remember any interplanetary Clan Chatterwebs. More often than not multiple Clans have enclaves on the same planets, so a planetary network could have members from many different Clans. Strana Mechty in particular would have all Clans present.