An understanding of keywords and search engine behavior are important for SEO when writing copy for the web. This means copy for a website may have to contain certain keywords that people search when looking for something. If those keywords are used properly and in the proper places within the article, more traffic will come to the website via a search engine, and the owner of the website could have the potential of making more money.

There is no set length for a market research report. However, your research should be in depth, covering every conceivable aspect of your target audience and the market for products of your type. For example, your report should include such items as a definition of the market size, competitors and their market size, as well as estimates of market share.

In Steve Krug’s book Don’t Make Me Think, Revisited: A Common Sense Approach to Web Usability (as well as in the first and second editions of this series), Krug talks about the importance of making things as simple as humanly possible for website visitors. Although a lot of the material covered speaks to web designers, it is also helpful for content developers and marketers as well. 
Copywriters think in a completely different way to a) editorial or book writers, and b) almost every other person on Earth. In fact, the overwhelming majority of copywriters think in pictures. We leave our art directors to think in words, which also accounts for the overwhelming majority of art directors. It's an unexpected phenomenon, but that is why the time-honoured ad partnership works as well as it does.
Admit any data collection difficulties or incomplete sections. Your executive summary should also include a section where you explain whether or not you had any difficulty attaining the data within. This could help explain incomplete or omitted sections or topics. Sometimes, there's no way to obtain a certain set of data reliably. If this is the case, explain why it is so in your summary.