In terms of market share, ReferLocal is clearly lagging behind, losing to Social Dot Com in all segments.
Social Dot Com has better usage coverage in more websites categories. Including Business & Industry, Books & Literature, Food & Drink, Sports and one other category.
ReferLocal is leading in News & Media, Newspapers and Computer & Electronics.
Social Dot Com is leading in most countries, including Sweden, Canada, Australia, Spain and one other country.
ReferLocal is leading in United States and China.