I am interested if anyone has completed or has an idea for type of modeling technique(s) could be used to solve the following: We want a 'Next best action' model to determine the which product an existing customer would likely purchase next. For example, if they have previously purchased the Tetris1 game or a Ludacris ringtone, we want to send a message telling them about the new Tetris2 game or the new Ludacris or Young Dro ringtone. We have been discussing using a Market Basket Analysis, but to me that means 'If A occurs in the market basket, then B also occurs in the market basket'. However, B does not yet exist, as it will be released next week or next month. I can certainly see using MBA for existing products, but we are interested in 'New' products. Thanks in advance Jerry Musial Advanced Analytics Cingular Wireless