Faith Popcorn has been trendspotting for years, and is considered one of the leading people in the field of branding. Her company BrainReserve handles several large brands across a variety of industries.
Academic.edu is a social networking system for college professors. If you visit my page, you will notice that I am being followed by Paul Levinson, but also notice how many people Paul Levinson is following.
As the book indicates, this marketing service is very, very complex. Here is a link to a more detailed breakdown of what kind of data the service collects, and the other categories it uses to identify consumers.
365Black is a new website that has been set up by McDonald's. Click here to access the site. I invite you to look around at the different areas of the site. This is an excellent example of target marketing, and branding. Pay particular attention to the questions under the "Feedback" section. They are all about McDonald's brand identity, and not about the food.