It is vital for those working in language revitalization to learn from each other, share resources and even implement initiatives together. When one community connects with another, they may realise that they are not the only ones struggling with language endangerment; connections between such communities can inspire enthusiasm for revitalization. This chapter describes activities that communities have engaged in when working together, including training activities, artistic activities such as film making, and political lobbying to influence language policy. It suggests ways to initiate contact, assess community needs and structure cooperation so that it addresses the most urgent needs, while also considering the factors that make cooperation successful. Such initiatives aim to bring language revitalizers to a global conversation about cooperation or solidarity between peoples suffering oppression and discrimination. The capsules describe interdialectical encounters between diverse Nahuatl communities, and the work of the Engaged Humanities project, which linked people and stimulated the creation of ‘communities of practice’ for revitalization initiatives.