How is twitter affecting college students communication in the US today vs. 2005 before it's invention?

I am writing about twitter and the culture that surrounds it. I will focus on trends and other things associated with twitter. I am wrting for non-twitter users (people who don't really know about twitter) to see how people interact on twitter vs. 2005 when twitter was being born. I assume that people are more involved in twitter speaking there mind on their than talking to their friends about their  issues. I hope to know why people vent on twitter, what makes twitter so apealing, and why people dedicate a lot of their time to it. I will interview people who have twitter, I will look at my twitter news feed, observe and take notes.