In terms of market share, Open AdExchange is clearly lagging behind, losing to ReferLocal in all segments.
Open AdExchange has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, People & Society, Shopping and 21 other categories.
ReferLocal is leading in Tourism.
Open AdExchange is leading in most countries, including Denmark, Sweden and Australia.
ReferLocal is leading in United States and France.