I have been using PersonalBrain everyday and for extended periods of time each day for several months now. This morning one of the PersonalBrain Forum guys stated:
My experience with Personal Brains is that they tend to be organized in a very personal way. For instance when I look at Jerry Michalski’s Brains online at www.sociate.com or the Text Chunk Library Brain or my own personal Brain, they all structured differently. To be frank for instance I am not sure I have very well understood yet “how to find my way around” in the Text Chunk library Brain. -- [Yannick]
This spurred me into action to analyze the way I have been using PersonalBrain. After completing this analysis, not only do I think there are personal ways of using PersonalBrain, but there are also different patterns of use according to what one is doing.
I have identified at least seven different ways that I have used PersonalBrain over the past several months. Here is my list of seven different ways of thinking with PersonalBrain. I am sure there are possibly more. Why I consider there are seven different ways of thinking is that there are very distinct patterns of thought organization that lead one back to consider what process caused those different patterns to occur.
1. Associating
This pattern of PB thinking is rather much like connecting dots to make a picture. I think of a word or phrase, then another and set a relationship between those two thoughts. Then, I think of something else and it has a relationship to these two ideas and so on. After awhile, the pattern becomes very complex and everything becomes intertwined. A good example of this is in the Text Chunk Library Brain as shown in the diagram below:

2. Categorizing
Another way I think with PB is to think in Categories. This item an now seeing or thinking about belongs into this category, or that category. For example in researching Google for my Googlology Site, I set up several different categories to place my information as can be seen in the following diagram:
The difference between Categorizing and Associating is that with each thought I add in this Plex, I jump from one "Topic" thought to the other to put thoughts in their "correct" category. This type of thinking produces a far less complex Brain when all thoughts are simply left as belonging to a category. However, when I begin doing some associating after all the links are in under their respective categories, then the plex becomes far more complex. So, in reviewing my practice, even though I may start categorizing, in the manner shown in this diagram, I then can revert to associating to get more inter-relationships going.
3. Ordering
Another way I think with PB is ordering a set of thoughts. I do this particularly when planning a set of chapters in my Rapid Text Construction technique. This I consciously number each thought so that they fall into some sort of order. This particular Plex is from my current Google Tutorial I am preparing to work some ideas with people who are new to Google. I have a logical order in which I wish to show them the different Internet pages about Google.

4. Synthesizing
Synthesizing is usually an activity I do once I have a number of thoughts in place through any of the other methods. I tend to work my way from the main thought upwards and try to link many thoughts into the one thought. You can see the results of this activity in the Plex on the Board of Directors of Google:

5. Detailing
Detailing is where I start from a thought and try to get every little detail of a subject listed under the thought. This can lead to either a Plex full of thoughts below the main idea, or it can lead to many different levels of thoughts under the main ideas. There is nothing really to show in terms of a Plex that is anything different to what you have seen, but rather it leads to many more different levels deep down away from the main thought.
6. Contextualizing
This is where I specifically use a jump thought to change contexts. Here in my main thought is the context of "Brainstorming" where everything is associated loosely in some manner. Now I am going to jump to the context of planning a Tutorial, as can be seen in the picture two above from here, where there is the tutorial and then all the ideas off to the left in the other context. I can have loads of different contexts from the main thought, all indicated by that jump away from the main thought. Here in this Plex you can see two jumps that are two new contexts -- one is where I pull together an example book using chunks from the text chunk library and the other is a jump where you could create your own book from text chunks.

7. Summarizing
This is the kind of activity I do starting from a jump thought. In its own section I start pulling some of the ideas together from the research done to date. These all tend to be main ideas from which many other thoughts are detailed that come from throughout the whole body of research. This is another way of looking at the information. What tends to arrive here are highly complex plexes that arrive at some stage to a central idea from which all others tend to be connected.
Maybe there are other ways of working with PersonalBrain. I hope this starts lots of discussions about using PersonalBrain.
[
Elwyn Jenkins: Personal Brain]