Adding the bbc.co.uk domain to the list of allowed sites should let BBC embedded content through.

BBC: Your guide to the BBC Embedded Media Player

Analysts say that VeriSign stands to gain from the expansion of domain names because it is both a registry, holding and updating a master list of domain names, and a registrar, selling the domain names to businesses and the general public.

CNN: New domain names approved

Point it at a site or an entire domain, such as .edu, and it generates a list of e-mails, log-in screens, database errors and source code, all of which are classic ways to gain entry onto a server.

FORBES: Google Me Not

The list of organisations was drawn from the information available in the public domain, also including the recently released information relating to top public sector salaries released by the cabinet office.

BBC: Public sector salaries: methodology