Linked
by Albert-Laszlo Barabasi

How Everything is Connected to Everything Else and What is Means for Science, Business and Everyday Life

This is a very interesting book. It has remnants of Six Degrees and Tipping Point. I’d say it was a bit better than Six Degrees but no where near as compelling as the Tipping Point.
Even though, I suggest this book — it will certainly make you think (and it is a quick read).