FriendBuy is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
FriendBuy has better usage coverage in more websites categories. Including Shopping, Business & Industry, Clothing, Food & Drink and 63 other categories.
MentionMe is leading in Magazines & E-Zines, Flowers, Cycling & Biking, Energy and 4 other categories.
FriendBuy is leading in most countries, including United States, Australia, Canada, Russia and 23 other countries.
MentionMe is leading in United Kingdom, China and Belgium.