Google to buy Motorola Mobility for $12.5 billion

Google jolted the tech world Monday morning with an announcement that it is buying cellphone maker for $12.5 billion in cash. The deal marks the steady expansion of Google’s reach — from organizing Internet search results to offering its Android software for phones and now building the phones themselves. And because Motorola has thousands of valuable patents related to wireless technology, the acquisition also allows Google to beef up its arsenal of intellectual property as tech firms over patent violations.