According to research from comScore and the Local Search Association, 22% of all US mobile owners used search on their phone in January 2011, up from 16% a year earlier. In addition to the rise in reach, there has also been a rise in frequency. By January 2011, there was a 10% year-over-year drop in the share of users searching just a few times per month. At the same time, almost-daily usage was up 20%. More than half of mobile search users now search on their device at least weekly. Mobile users are also upping their use of local content, by 34% year over year. While browser usage still dominates in terms of local content access methods, mobile browser popularity dropped slightly between 2010 and 2011. Apps, meanwhile, grew to take a larger piece of the local mobile content pie. Get the full story at eMarketer