·Targeting countries, OS, browsers, device types (mobile, tablet, PC), categories; Click-fraud protection; 2 payments model CPC (cost per click), CPM (cost per impression); Manage users, sites, campaigns, ads; Impressions, clicks statistics; Separate admin, advertiser/webmaster, moderator accounts; 16 most popular banner sizes; Responsive HTML 5 ad units; Visual ad unit builder; Internal user support system