You’re SO EXCITED about the Upcoming Classic Warcraft. You want to really immerse yourself. Here you go:
The Official World of Warcraft forums are a good place to start. They are a bit overloaded with cries of anguish from those who aren’t in Beta, and there’s a weird anti-streamer constant contingent. Actual beta feedback does appear, and you can see any Blue Post comments easily.
The Wow Classic Reddit page has a bit of the above, but much more actual discussion of the game and how Classic plays. There’s advice on class choice, profession information. It’s all here.
Blizzard Watch I still miss Wow Insider. Once I started playing regularly, I read it every day. Now, you just have to filter through looking for your Classic Wow fix. Matthew Rossi reliably writes great stuff.
MMO Champion has a Wow Classic Discussion forum
Wowhead has a huge Classic Wow page. Class guides, talent calculator, maps, if you’re looking for it, they’ve got it. Lots of really interesting feature articles, too.
Icy Veins is starting a new series spotlighting Classic Wow.
Vanilla Friends allows you to search for old guildies and Vanilla era friends. You can search by Realm, character name or guild.
There’s a podcast I’ve been listening to called Countdown to Classic with Josh Corbett. He’s in the beta, and gives his impressions, plus has other players as guests to get different viewpoints.