I've just come across www.moneymadeclear.fsa.gov.uk, a site run by the Financial Services Agency, and it's got quite a lot of useful information on it. I particularly liked their page warning of firms that are in trouble: for example at the moment it says that anyone who has bought financial products through Pure Money should contact the FSA, because this company is not authorised to sell such services. Seems like a handy page to bookmark.