Talk to friends and co-workers who have worked with an architect --- word of mouth is almost always the best way to find an architect. Your acquaintances can relay experiences and the process of working with an architect. Also, your peers will be able to point out architects who often do work in your area. This is important because every location in the world has different conditions and requirements.
Search the business directory, online and phone book, to find architects in your area. Although this is not an expedient way of finding an architect, almost all architects are listed in the directory.
Search preferred provider websites, such as Kudzu or Angie's List. These sites provide ratings and notes on experiences with architects; however, you must question the source of the information. This method is better than searching the business directory, but worse than asking people you know.
Visit the American Institute of Architects (AIA) website to access architects who are members of the AIA. An architect who is affiliated with the AIA is not necessarily better than others who are not. More importantly, you should ensure that your chosen architect is registered in your project site's state.
Interview three to five architects before making a decision. You will be working with the architect for 6 months to multiple years. So, you need to find someone with whom you are comfortable.
Choose the architect and negotiate the agreement.