This time you can choose what to blog about. Write 140 words minimum and remember to leave comments on at least three of your classmates' blogs.Here you have an example of how you can organise what you want to say.
If you want to write about "Mass Media connections with major corporations", you should outline the following:
What is mass media
Mass media influence in Politics
Mass media influences in Chile
You can have three paragraphs to develop these three ideas and voilá your post is ready!