1 INTRODUCTION

2 DATA  
2.1 The HOYS-CAPS Project  
2.2 The Beacon Observatory  
2.3 Details on additional Observatories used  
2.4 General data calibration

3 DATA ANALYSIS  
3.1 Selection of Young Clusters and their variable YSOs  
3.2 Determination of light-curve properties  
3.3 YSO near and mid-IR SEDs  
3.4 Hierarchical clustering of YSO light-curve properties

4 RESULTS AND DISCUSSION  
4.1 Selection of variable YSOs  
4.2 YSO groups from the Hierarchical Clustering  
4.3 α-values and M-values  
4.4 Variability  
4.5 YSO properties in Clusters/SF Regions  
4.6 Discussion of selected individual Sources

5 CONCLUSIONS