Where you level depends on what race/faction you are and where you started. There was a very good overview map on MMO-Champion; I have placed it in the related links.
As of patch 3.2 the newest raid instance is Ulduar.
You can since the last patch. :)
The first year for World of Warcraft to be online was 2004. Wow - have things changed in Azeroth since then!
Blizzard, the makers of World of Warcraft, has not released any information on when Mists of Pandaria will be released. Since patch 4.3 (the deathwing raid patch) is not even out yet (as of 10/23/2011), it will be a while, maybe late summer/early winter of 2012.
Ever since mid July-2011, the usage of World of Warcraft Trials has been discontinued and been replaced by the starter edition. This starter edition has a level 20 and 10 gold piece cap for users.
Since patch 4.0.1, once you hit level 80 you will have a total of 36 talent points. Cataclysm will introduce 5 additional levels for each one of which you will gain one talent point, for a total of 41 at level 85.
If Blizzard did make world of Starcraft there would hardly be a difference between World Of Warcraft and World Of Starcraft since Starcraft and Warcraft are very similar games. so there is really no point of making it.
Currently, World of Warcraft is very popular, and Blizzard is working on a new expansion to the game, Cataclysm, which will change the look of the world forever. But, since the game is still very popular, there isn't going to be a "World of Warcraft 2" unless the popularity of the first game dwindles.
Since Cata released its Stormwind and Orgrimmar
Blizzard is discouraging the use of buying gold in order for people to power level, since people who buy gold to power level end up getting hacked, and having their characters and gold stripped from them.
No, you can use the same CD and install it on other machines BUT you can only play one machine at a time. Since it registered to your account.
Level 16 was the level cap, meaning that it is impossible to level up more than that , but ever since the patch with arcanum castle, the level cap was moved to 21