SimplePractice 

simple practiceSimplePractice is the cloud-based practice management system that I use personally in my clinical practice.  The system is simple, clean, easy and intuitive to use, and they keep adding new features. It has all the normal features, like calendar, client info, progress notes, reports and document uploading, and also has a patient portal, an iphone app, and insurance billing (that one is an extra fee.)  They have clearly spent a ton of time thinking through what a private practice therapist would want and need, and created a system that gives you that without all the other clutter. I love it, and honestly I love the guys behind the website, too.  Just really good guys.  (The founder is a trained therapist!)

 www.SimplePractice.com