| transdiffusion.org | The Authority |
| ofcom.org.uk | Office of Communications (Ofcom) |
| itc.org.uk | Independent Television Commission |
| asa.org.uk | Advertising Standards Authority |
| radio.gov.uk | Radiocommunications Agency |
| hmgcc.gov.uk | Her Majesty's Government Communications Centre |
| dti.gov.uk | Communications and Information Industries Directorate |
| guardian.co.uk | Guardian Unlimited Politics Special Reports - E-government |
| tradingstandards.gov.uk | Trading Standards Central - Trading Standards And Consumer Protection Informati |
| tpsonline.org.uk | Dma Online |
United Kingdom , London, City of , London