Background research [Aug. 17, 2012, 5:55 p.m.]
What has been done before which is closely related to your project? Answering this question can be done throughout your project, and it will likely happen multiple times, but it needs to be done to help build your project and avoid others' pitfalls. Your work will be built on the work of others, so cite accordingly.
Start documenting your references, and short paragraphs which help put them in context of the work you're trying to do.