59% of internet users in Latin America bought products online in the past year, according to a September 2011 survey by Latin American research firm Tendencias Digitales. Respondents in Argentina, Chile and Uruguay led the pack.Online buyers in Latin America, by country, September 2011 (% of internet users):- Argentina: 71%- Chile: 71%- Uruguay: 70%- Venezuela: 68%- Mexico: 61%- Costa Rica: 56%- Ecuador: 53%- Colombia: 47%- Peru: 47%- Paraguay: 42%- Dominican Republic: 40%- El Salvador: 36%- Guatemala: 30%The top products sold online included tickets for entertainment or travel, purchased by 30% of respondents, computer accessories (22%), clothing/footwear/accessories (22%) and books (16%). Growing uptake of ecommerce will drive returns in Latin America. eMarketer estimates business-to-consumer (B2C) ecommerce sales in the region, excluding Brazil, will total $15.2 billion this year and nearly double to $28.5 billion in 2015.