Independent communications adviser uSwitch.com offers a free, impartial comparison between home phone and internet providers.
The government watchdog, Ofcom, provides independent advice on communications, complete with statistics, advice and studies.
Mail Royal Mail has a detailed website answering most of your mailing questions and displaying Christmas deadlines as the festive season draws closer. Or call their customer service line on 0845-774 0740.
The All In London online directory has a large list of locations for internet cafes in London.
Overseas SIM cards, see www.textbaysims.net.
Phone home for free on the internet. Go to www.skype.com.