CareSearch is an online resource for palliative care. It has evidence-based resources for both clinicians and for patients, and their families and friends. As it is now a very large repository of evidence-based information, I would like to point you to four of the best sections for GPs to start off in.
These sections include the GP Hub, the Clinical Evidence pages, the Finding and Using Evidence pages, and the Education pages. You can also find information specially written for your patients in the Patients, Carers, and Families section.