1. Note subjects that interest you. Being engaged in the research makes a more enjoyable process for you, and often results in better work. If no topic comes to mind, browsing sociology journals may help. It can also help to ask the following questions:
2. Note keywords that will help you search for sources on that topic. Don't worry about getting the right terminology at first. Just use what you can think of as a starting point.
3. Browse sources. A helpful starting place can be Reference Material. It provides background information, subject terms/keywords, and links to other sources and key authors.
Once you have a general topic you'd like to research, narrowing it becomes important because if your topic is too broad it will be very difficult to address the problem in the space and time allowed. Other problems could include: