1. Introduction

2. Observations, Data Reduction, and Sample

2.1. The Sample

2.2. Known and New Binaries

2.3. The Observations

3. Unresolved Targets

4. Simple Models to Characterize the Visibility Profiles of Resolved Disks

4.1. The Ring Model

4.2. The Composite Model

5. Simple Fits of the PIONIER Data

5.1. Modeling the Visibility Profiles

5.2. Comparison with the Dust Sublimation Radius

6. Binaries Detected in the Survey

6.1. AK Sco

6.2. V1000 Sco

6.3. TWA 3A

6.4. WW Cha

7. Summary and Conclusion