I think if I bid with the keywords in Display Network, such as: Web design, web pages design, etc. I will have a lot of webmasters watching my Ads that dont buy my services, and that is bad traffic for my campaign. I need another different traffic. Can you give me any ideas? Thanks
AdWords has a "Contextual Targeting Tool" that might help you get keyword ideas (under "Reporting and tools" tab). In addition you can turn to other targeting methods, as Interest-based Categories , choosing affluent geographic locations etc.