Ad blocking has been part of Opera long before this. It basically works the same as AdBlock in FF - right click and "block content" or something like that.Opera now has extensions similar to Firefox, and if you wish to use Adblock/Noscript you can use the single extension NoAds.
Flashblock is a pretty standard addon these days. Now that ads are appearing in flash format, we're looking at single advertisements being damn near 1mb in size. This shit ads up fast.
