How can we make the generation and use of biogas far more widespread?

Most organic waste can produce biogas. Biogas generation from waste not only takes care of a problem (waste disposal) but also generates something of value in return – thus, a double benefit. Laste scale generation and use of biogas from organic waste can thus result in tremendous environmental and energy benefits. What are the innovations in biogas technology and operations that can make its production and use far more widespread than what it is right now?