DFP Small Business by Google

• http://www.google.com/dfp/info/sb/index.html
• http://www.google.com/support/dfp_sb/bin/static.py?hl=es&page=guide.cs&guide=27854&from=27854&rd=1
• http://gam.ingraye.com/basic/creating-your-ads/
• http://www.labnol.org/internet/google-dfp-tutorial/14099/
• http://www.infaq.co.uk/articles/google/dfp_small_business_target_specific_urls.html