AdSide is leading in Top 100K Sites and Top 1M Sites.
AdSide has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, Autos & Vehicles, News & Media and 68 other categories.
ReferLocal is leading in Chats & Forums.
AdSide is leading in most countries, including United States, Canada, India, Brazil and 19 other countries.
ReferLocal is leading in Belarus and China.