Photographs of problems at Coppermill Place, built by Persimmon Homes in 2001, alleging that Persimmon have ignored numerous residents complaints. mysite.wanadoo-members.co.uk/poorsimmon
Information and advice on buying for both consumers and businesses from Buckinghamshire-based professional purchasing consultants. www.purchasing-consultants.co.uk
Advice, assistance and information on holiday complaints to consumers and holidaymakers who have travelled abroad with a British tour operator. www.holidaytravelwatch.org
Independent gas and electricity consumer watchdog, providing help to domestic, commercial or industrial energy (gas and electricity) consumers. Includes details of regional offices, and of services available nationwide. www.energywatch.org.uk
Advice on energy efficiency from the Energy Saving Trust, an independent, government-funded body. Includes tips and information and details of grants and offers available. www.saveenergy.co.uk
Department of Trade and Industry run portal containing information and advice for online consumers. Features news, advice and links to consumer information on a variety of topics, including shopping, home improvement, finance, holidays and utilities. www.consumers.gov.uk
General advice on consumer rights in the UK, information on your rights under the law, tips on how to complain or how to find someone who can help with your problem plus information on shopping on credit and getting out of debt. www.oft.gov.uk/Consumer
Publication about the changes to Building Control regulations affecting the double glazing and conservatory industry. Technical information and contact details. www.fensa.biz
A free independent service available to help the window, conservatory and sunroom buyer to make sense of what's available and what to look out for. Includes trade tricks, list of installers, technical information and contact information. www.nrwas.org
Tips on ethical buying, consumer reports on a wide range of goods, information on UK and worldwide boycotts. Publishes Ethical Consumer magazine and the Corporate Critic database. www.ethicalconsumer.org