Aside from the Faculty’s daily and weekly CfP digests, the following sites collate national and international CfPs:
You can also sign up for email alerts at JISCMAIL – choose the mailing list(s) most relevant to you.
Our Twitter page (@EngGradOx) circulates as many as possible of the (numerous) CfPs advertised on that platform. Follow us on Twitter to get these updates!
Individual scholarly societies often also have their own mailing lists; many of these lists are free to join.
If you find a CfP which you think would particularly interest the graduate community in Oxford, please do share it on the network (instructions here).