National Insurance Contributions Office
Very useful for all matters relating to national insurance contributions.
Choose a currency to convert from, and what currency you want it converted to.
Federation of Small Businesses
With over 200,000 members, the FSB is acknowledged to be important by all parties.
This site contains, amongst many other things, all the Revenue and Customs explanatory leaflets, and is a mine of useful information.
A link to a brilliant site that includes up-to-date news on all accounting related matters, including Budgets etc.
The arbiter of charities in the UK