In this article on openDemocracy entitled The revolution will be networked Paul Hilder offers some very good arguments as to how the left needs to organise going forward. It says:
A networked labour movement will help the Labour party to forge better alliances with the growing plurality of progressive and left forces. It requires moving decisively to harness technology in the service of individuals, communities and the common good, to fundamentally and irreversibly shift power into the hands of the many.I urge you to read it.