PTR 3.22 for DPS and Tanks bears some good news.
Tanks can now consider unholy and frost as proper equals to blood tanks. Unbreakable Armour being one minute and buffed to +armour again makes it mathematically similar to the damage reduction of bone shield. I expect UA duration to be put to 15s down from current PTR 20 seconds to balance it out, sine Bone Shield is now 3 charges (+1 from glyph) on PTR and Vampiric Blood is 10s (+5s from glyph).
I did some analysis on Unholy tank builds in …

We’ve got a few discussions actively going on the tanking and dps changes in PTR 3.22. I think PvPers will like the bone shield cooldown being reduced to 1 min too. MMO-Champion has done a spell comparison with very promising results.
Ghostcrawler has commented now, read the discussion.
Death Knight
Blood

Heart Strike now has its total damage increased by 10% for each of your diseases on the target to the primary target, and half that to the secondary target.
Vampiric Blood now lasts 10 sec. (Down from 20 sec.)
Subversion now also affects Scourge …

Our very own Splug has gained acclaim for producing a hard-mode General Vezax kill video for TankSpot. Some readers of dk.info might not realise he’s the GM of a top 100 guild, Angry. Splug’s been an active poster at dk.info for a long time, and I’m always grateful for his contributions, and this video at TankSpot takes that to an even broader community. Others might know him from maintankadin and tankspot forums, but to my mind he’s a dk.info man! :)

One of the changes of Cataclysm which I’m most going to enjoy are about the guild system. Guilds themselves will have levels and a talent tree. wow.com posted a photo from Blizzcon which shows it’s a bigger talent tree than I’d have expected. Quite exciting for guild leaders.
Repair-cost reduction is shown in the photo. That will help with guild income/expense management.
Cold Comfort is writing a series on these changes with his overview and part one published already. He provided a link to the gallery of photos from this panel, and …

To find a one-stop source of information on Cataclysm, these sites have so far produced mini ‘portals’ on the content. They organise the content sometimes by Blizzcon date, or by information type. Certainly convenient.

world of raids
wow.com
wowraid.com coming soon.