Let's just take a look at quickly a web example--in getting customers, you're going to be o worrying about how do I acquire them that is how do I get them even to my website, how do I activate them that is how do I make them do something, and then later on we'll see after I got them how do I keep them around that is how do I not lose them through attrition and churn and then what can I do once I have customers to make them spend more money or use my product even more.