July's top online retailers—based on conversion rate—were food home-delivery and mail-order service Schwan's, Green Mountain Coffee's Keurig brewing system, and florist ProFlowers, according to Nielsen Online.
Note: Nielsen Online determines conversion rate based on visitors rather than sessions: i.e., No. of unique customers/No. of unique visitors. To qualify for inclusion in the top 10, online retailers had to have a minimum of 500,000 unique visitors during the month.