A few useful links;
Free Couch to 5k plan for complete beginners/returning runners/injured runners:
Parkrun – simply find your local, sign up, print your barcode and off you go! A free weekly timed 5k.
Up and Running Social Run Group – these are local run groups from local UpandRunning shops. Again free to attend!
Kinetic Rev – find him on twitter/facebook. Full of useful facts and advice