The new search technologies Google unveiled recently put a mobile-flavored twist in the company's desktop search engine, including a new voice search capability. Google also announced the ability to search by an image and a feature called "Instant Pages" that leads to even speedier search results. Many of the new reveals come in response to the shifting way in which consumers are using search engines. The number of online searches originating from desktop computers decreases during evenings, weekends and summer months, according to analysts tracking traffic.