Chris Martenson has an interesting online course that describes some fascinating economic trends, that in one form or another may shape our future and mission. Before we get into this, I think that it is very important to understand that, while some of the information presented is based off of hard facts, other information is based off of educated assumptions. Regardless of whether or not you agree with all of the underlying assumptions or conclusions, the description of the systems we find ourselves in are accurate and easy to understand.
You can go to to www.chrismartenson.com to see more or youtube it yourself.
Below is an overview video describing the bulk of the course.