Nielsen Mobile has released the results of a survey of 5,700 mobile search users which found that 46.1 million people in the US used mobile search in the third quarter of 2007. Of those people 18.1 million used 411 and 14.1 million used SMS-based searching. The most popular things that were searched included local listings with 27.1 million people searching for those in the quarter, followed by 14.8 million searching for information such as sports scores, news or weather, and 11.3 million searched for mobile content. The survey also found demographic differences, with 61 percent of 411 searchers being female while 60 percent of WAP searchers were male. A third of SMS searchers were under 25 and within SMS search providers Yahoo (NSDQ: YHOO), Yellowpages SMS and SuperPages SMS “all over-index for Hispanic users”. (Release.)