We’ve recently relaunched http://www.internationalstudent.com as a Yii application. The site is a portal for students wishing to study in the US from abroad and vice versa.
The site contains several distinct modules which we have created to bridge multiple databases and applications (For example, the scholarships module of the application is also used by our scholarship sites: http://www.iefa.org and http://www.internationalscholarships.com – Also built completely on Yii ) To do so, we’ve made heavy use of the themes capabilities of Yii.
really nice !