Representatives from the film and music industries have identified around 100 websites they would like to see blocked by internet service providers (ISPs).
Rights holders are concerned about the impact of illegal filesharing on their business models, and wish to see ISPs take proactive steps to prevent the practice.
Under new proposals - which could serve as an alternative to the Digital Economy Act - content owners would pass evidence of illegal activity to broadband providers.
They would then be required to take appropriate action against the websites enabling filesharing to take place, reports the Guardian.
Sites including The Pirate Bay, NewzBin2 and various cyberlocker file storage portals are believed to be on the drafted list.
"Site blocking is an interesting concept which we're open to, but there are issues on how to make it work," an ISP source told the Guardian.
"[These include] how to give sites a fair hearing, its governance structure and indemnity. But get a judge to tell us to do it and we'll do it."