Pronunciation: Improve English for the IELTS Speaking test (by British Council)
IELTS Interview Skills - British Council Learn English
British Council - IELTS: Speaking - Pronunciation (a useful handout)
Road to IELTS - online preparation for IELTS
Good luck IELTS - Pronunciation tipshttp://www.goodluckielts.com/2-5-2-IELTS_pronunciation.html
IELTS Speaking test: Pronunciation (a bunch of tips)
IELTS Speaking Assesssment Criteria (official version)http://ieltsessentials.com/pdf/BandcoreDescriptorsSpeaking.pdf
British English Coach on FCE pronunciation, but it's also useful for IELTS, so have a look!