- Embassy of the Republic of Turkey in Washington DC:

http://www.turkey.org/

- Ministry of Culture and Tourism :

http://www.kultur.gov.tr/EN/

Especially these short clips are good:

http://www.kultur.gov.tr/EN/BelgeGoster.aspx?17A16AE30572D313AAF6AA849816B2EF212362B84F7B7B76

- Guide Book of TURKIYE (by Serif Yenen).

- Diary of a Foreigner Living in TURKIYE (by Pierre Flener).