There is a lot to keep track of when it comes to protection of personal data. Here are some useful online resources:
GDPR-expert - full text of GDPR - unique tool with links to preambles from individual provisions both for the regulation and directive
GDPR - official English version
The European Commission's website on data protection - news and useful information
The European Data Protection Board - the site of the independent European body consisting of the different data autorithies in EEA.
The European Data Protection Supervisor - the independent supervisory authority of GDPR
Information Commissioner's Office - the British supervisory aurotithy
Det Danish Data Protection Supervisor- the Danish supervisory autorithy