Guy Kawasaki in his book, "What The Plus", gives his views on the strengths/focus of the Big 3 social networks:
Twitter = Perspectives.
Twitter is great for getting or sending immediate perspectives on news and
events. In other words, if you want to learn that there was an earthquake in Chile before CNN and you like getting updates from Chileans at ground zero, then Twitter is for you. In short, Twitter is for real-time perspectives.
Facebook = People.
Facebook is the way to learn what’s going on in the lives of people you already
know (friends, relatives, and colleagues). It’s great for learning that their cats rolled over, that they went to a great party, or that they had sex, kittens, or children. In short, Facebook is for people.
Google+ = Passions.
Google+ enables you to pursue your passions with people you don’t know. Your fifty friends and family on Facebook likely do not share your passion for photography, but on Google+ you can have a blast with a community of photographers. In short, Google+ is for passions.
Ed - Must admit I hadn't thought of Twitter, Facebook and Google+ in this way, I just thought of them as 3 channels to get the word out. Maybe now I know Google+ = Passions, I might spend more time on there. After all, Pattaya and passion are synonymous surely.........
Get a free copy of Version 1 of the book at http://yousend.it/MapCom