http://www.dma.org.uk/content/home.asp
http://www.ico.gov.uk/
http://www.adassoc.org.uk/
http://www.cap.org.uk/cap/
http://www.dmis.co.uk/
http://www.royalmail.com/portal/rm/jump1?catId=500185&mediaId=400046
http://www.tpsonline.org.uk/mpsr/
http://www.mpsonline.org.uk/bmpsr/
http://www.tpsonline.org.uk/tps/
http://www.theidm.com/
http://www.brandrepublic.com/Discipline/DirectMarketing/
http://www.precisionmarketing.co.uk/Home/Default.aspx
http://www.b2bm.biz/
http://www.dmarket.co.uk/
http://www.brandrepublic.com/marketingdirect/