Cisco made 11 acquisitions this year culminating in 126 purchases since Cisco's birth. It made three more acquisitions than it did last year, when it spent a measly $256 million buying ho-hum technologies. This year was different, not only in the sheer dollar size of some acquisitions, but also because of the breadth of technologies it acquired. From social networks to broadband wireless, we take a look at what Cisco Subnet has named Cisco's top-six acquisitions of 2007. We also look at what Cisco should have bought and what Cisco may be looking to buy in 2008.