The Royal College of Nursing is a professional union for nurses. There are a range of benefits for members (which I'm sure you are familiar with) but I am going to point you in the direction of their freely available resources such as guidelines and information about best practice.
NursingPractice Issues : for a range of documents covering a number topics and conditions such as Clinical Governance, Diabetes, Pain in Children, Social Inclusion and many more.
ClinicalGuidelines : The RCN supports and have helped to develop a range of guidelines – you can find a list of them here.
Publications : There are also a number of publications which are freely available to download. These relate to professional as well as clinical issues, including competences.
The RCN also produce the This is Nursing website. This website hopes to promote nursing and educate people about what is involved. Here you can find out the latest news about the profession, articles about issues affecting nursing and videos too.
You can follow the work of the RCN in a number of ways.