AContractorsWorld.com
   News for UK IT contractors.
   http://www.acontractorsworld.com/

Contractor UK
   Advice, articles, and information for UK IT contractors.
   http://www.contractoruk.co.uk/

Magenta Circle - UK Consultants' Network
   A networking group for self-employed consultants in the UK.
   http://www.magentacircle.co.uk

Professional Contractors Group
   The trade association that represents the interests of freelancers.
   http://www.pcg.org.uk/

Shout 99
   UK freelancer network.
   http://www.shout99.com/