1up up has an article up about the first graphical MMO. I had never heard of it, apparently it came out in 1986 (!?!) and played a lot like King's Quest meets Ultima Online. Another more academic article with a screenshot here.
Mirkwood may be a lot of fun, but the last two nights I've actually been playing Wizard 101. Huh, almost broke into poetry there. In any case, it's hard to say what I find so compelling about the game. One major element is definitely the strategic feel of the combat. Last night for example, I figured out a new simple four turn strategy with my existing cards that made a spell that I thought was nearly useless shine. Then I got a new spell that forced me retool my deck and drastically changed my basic combat strategy once again. I also like the "buy hunks of content and own them forever" business model. I tend to play the game in randoms bursts, usually involving a new alt, so it's nice to "own" access to the first three worlds.
The 3.3 patch in WoW has been getting fairly rave reviews. I'm considering firing up my account for an experiment that involves trying to level up as much as possible entirely in single party instances. Would it be fun, or would the average inhabitant of WoW turn out to be such an asshat that I'd quickly get turned off? I know how I think it would go, but I'd love to be mistaken. . .
I have my main gaming rig back online again. I have to say, being able to play anything I like at a good frame rate while running i-tunes in the background is ten kinds of awesome. Although it makes the fact that I'm playing so much Wizard 101 (which runs fine on most pocket calculators) a bit ironic.