NHS GG&C have an excellent website dedicated to advanced practice –http://www.nhsggc.org.uk/about-us/professional-support-sites/nurses-midwives/advanced-nurse-practitioners/
Some of the information is specifically local to them, but much of the content is transferable and might be of interest to ANPs and managers alike. For example, their newsletter gives a really nice rundown of recent advanced practice developments!! NHS GGC Advanced practice newsletter april 2017