If you don't agree with the advertising you should be prepared to pay for the content.
I don't agree with many of the comments on this page that it is fully acceptable to block ads and that Hulu is in the wrong to block ad-blockers.
As far as I can see this is how Hulu generates revenue, as many have said it is like spitting in their face when this revenue is removed. The ads presented are pretty straight forward and not obtrusive. I think they are giving us a pretty good deal and some people still aren't happy.
It costs a lot of money to make TV shows and they need to make this money back somewhere, TV advertising revenues are right down so now they are delivering shows, free of charge to users in exchange for very minimal (IMO) advertising being served.
To those users that have said if they are prevented from using ad-blocking software they will not visit that website - I would have to wonder if any web-master would be bothered about losing a user who downloads content (which costs money) without making even the most basic contribution (viewing a few ads) to the running of the service.
For users not prepared to view ads, there is iTunes or Amazon Unbox or just DVD rentals for you to consider.