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<http://webisa.webdatacommons.org/137376149>	<http://www.w3.org/ns/prov#value>	"# 28 July 2008 at 3:10 pm Kelsey Group Blogs ?? SFGate Lifestyle Portal Launches, Powered by CityVoter said: [...] could be a challenge for local mind share, given that San Francisco is an area where Yelp is rampantly popular." .