Yelp (YELP -6.6%) is rolling out a major redesign of its site: changes include an emphasis on...

|About: Yelp (YELP)|By:, SA News Editor

Yelp (YELP -6.6%) is rolling out a major redesign of its site: changes include an emphasis on social networking features such as monitoring the activity of "friends," and mobile-centric features such as viewing check-ins and events. Yelp, which is built into Apple's Siri, recently mentioned its mobile site is accessed by 24% of its 78M monthly unique visitors, and features higher ad click-through rates than Yelp's PC site. Shares have fallen 14% this week due to news from Groupon and Google.