Microsoft adCenter Conversion is leading in Top 100K Sites and Top 1M Sites.
Microsoft adCenter Conversion has better usage coverage in more websites categories. Including Business & Industry, Shopping, Health, Computer & Electronics and 106 other categories.
ReferLocal is leading in News & Media, Newspapers and Chats & Forums.
Microsoft adCenter Conversion is leading in most countries, including United States, Great Britain, France, Canada and 37 other countries.
ReferLocal is leading in Netherlands and Austria.