Is there a leadership structure that connects all the house churches?
House church groups are very autonomous. There is no leadership structure that connects every house church in the world. Very often, though, the house churches in an area are somewhat associated with a certain person or people (e.g. Neil Cole – the Awakening Churches in southern CA; Jim Mellon – the Association of Home Churches in Killeen, TX; and more). But this association exists not because the “network leader” is taking control of the house churches, but instead because house churches in an area may find an advantage to seeking encouragement and support from a person that has quite a bit of experience with planting churches in that area.
