Here are the top 10 converting websites for August 2009*. These are based on Nielson Panel data and are calculated by user to final conversion. Conversion-rate data is based on visitor conversion rates, not session conversion rates: i.e., No. of unique customers/No. of unique visitors. 1. Schwan’s 45.1 2. ProFlowers 34.1 3. Vitacost 24.4 4. Woman Within 24.1 5. Blair 22.2 6. 1800flowers 20.5 7. AbeBooks 19.2 8. Amazon 17.0 9. QVC.com 16.8 10. DrsFosterSmith.com 16.2 < *Source: Nielsen Online…