Using Click-Wrap agreement in salesforce.com
===

I need to create a click-wrap agreement. We have customer base on salesforce.com and We have our core application on amazon cloud. We authorize user again salesforce user base.

We want to display License Agreement before user using core application.

So we have 2 options.
1. Display license when user sign up on salesforce.com user base. (License on Salesforce.com)
2. Display license first time when user uses the core product. (License on amazon)

Let me know the good way to implement this.

-Thanks
