People love Hulu for providing full episodes to TV shows and movies for free. Recently, Disney struck a deal with Hulu, and the company has also struck an international TV deal as well. They have also released desktop software, allowing the user to enjoy Hulu content outside the site itself... but it looks like you may have to start paying for Hulu's content soon.
According to Daily Finance, Jonathan Miller, News Corp.'s chief digital officer, said when asked about a subscription based Hulu "in my opinion the answer could be yes. I don't see why over time that shouldn't happen. I don't think it's on the agenda for Monday [but] it seems to me that over time that could be a logical thing." News Corp, a parent of Fox, owns a sizable portion of Hulu, along with NBC Universal and Disney.
Unfortunately, Miller's boss, Rupert Murdoch, is not in favor of putting content on the Web for free. Although he's been focusing more on news content, rather than Hulu.
If Hulu does start charging for content, no one knows if the entire site will become subscription based or just limited to certain shows and movies.