  The regulation of angular momentum is one of the key processes for our
understanding of stellar evolution. In contrast to solar-mass stars, very low
mass (VLM) objects and brown dwarfs are believed to be fully convective. This
may lead to major differences of rotation and activity, since fully convective
objects may not host a solar-type dynamo. Here, we report on our observational
efforts to understand the rotational evolution of VLM objects.
