In a recent article about annual loss of $300,000,000 in online sales, we are reminded that User Interaction with your site is imperative. Regardless of whether the number is in the hundreds or millions, the problem is that customers do not want to be stalled or inconvenienced during their shopping experience.   In the online world, shopping cart abandonment is all too easy. Think about it - how many often do you say “no thank you” at a Borders or Barnes & Noble bookstore or other retailer when asked if you want to open an account (”it only takes 5 minutes and you’ll save 20% today”) at the point of checkout?  How about other retailers, supermarkets?  Consumers value their time more than their money - sometimes. Account registration should be optional otherwise, the email addresses you gather from those who do register are canceled out by the revenue loss from those who “walk” away.