The Turkish Embassy, London
The Turkish Consulate, London
The British Embassy in Turkey, Ankara
Turkish British Chamber of Commerce and Industry
Ministry Of Culture and Tourism (in English) with virtual tours of many of Turkey's most famous tourism venues http://www.kultur.gov.tr/EN/ana-sayfa/2-0/20110702.html
The consumer guide - "How to Buy Overseas Property Safely"
2010 Rental Income Tax Guidance for foreigners.
Property Tax International. Experts in Tax issues in 15 different countries - including the UK, Turkey, Brazil, Spain and the USA. Comprehensive Tax information and advice for residents and non-residents. Tax returns, Capital Gains Tax, Inheritance Taxes.....take the headache out of your tax worries!
The Global Property Guide's Overview on Turkey (updated) http://www.globalpropertyguide.com/Europe/Turkey
Didim Tourism Association http://www.didimturizmdernegi.org