Title: Internal dynamics of UCDs I

Abstract:
I will review the general properties of ultra-compact dwarf galaxies (UCDs), like their 
photometric and structural parameters, and then will mostly concentrate on their 
integrated velocity dispersions and dynamical masses. I will show that dynamical 
mass modelling of the slightly resolved stellar systems can lead to different results 
when applying different techniques. Finally, some prospects on the spatially resolved 
internal kinematics of UCDs are given.