We study 60 galaxies residing in the deepest underdensities of 
geometrically identified voids within the SDSS. HI imaging reveals 
morphological and kinematic signatures of ongoing interactions and gas 
accretion. The void galaxies are generally gas rich, low luminosity, 
blue disk galaxies, with optical and HI properties that are not 
unusual for their luminosity and morphology. All galaxies have stellar 
masses less than 3 × 10^10 Msun, suggesting the void galaxy population 
is still in the process of assembling, as also indicated by their HI 
morphologies. One of the objects suggests that also in voids galaxy 
assembly follows the large scale structure.