In terms of market share, GSI Media is clearly lagging behind, losing to Six Apart Advertising in all segments.
Six Apart Advertising has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Sports, News & Media and 34 other categories.
GSI Media is leading in Shopping, Internet & Telecom, Children, Software and 2 other categories.
Six Apart Advertising is leading in most countries, including United States, United Kingdom, Germany, Indonesia and 9 other countries.
GSI Media is leading in Canada, Australia and Belarus.