This chapter discusses some light on the growth of service learning within European universities as a process of diffusion and dissemination of educational innovations. It also discusses the lens of Actor-network theory is adopted to explore service learning actor-networks in Europe that occur when identified key experts come together with institutional support, and share knowledge with each other and through scientific publications, educational resources and materials. The chapter investigates how educational innovations are diffused and spread within a region or an institution taking service learning in 12 European countries as an example. The findings indicate that the implementation of service learning in Spain, Germany, Ireland, Croatia and Lithuania is at a stage where the specific phenomena and patterned networks have already emerged. The future of service learning in Europe can be perceived optimistically if new international and national service learning projects as obligatory points of passage can be initiated, financed and implemented.