It is frankly ridiculous in this day and age that the UK doesn't have an official graphic display of NOTAMs.
The abysmal NATS site is an utter pain to use; if you don't use one of your standard routes frequently enough for Big brother's liking, they delete it from the system.... Even when you do succeed in obtaining a list of NOTAMs, the detail is often not in a readily assimilated format.
The requirement needs to be user-defined, not something 'legal but useless' involving strings of lat/long values which people are supposed to plot out on a chart!
As a minimum, a CAA 1/2 mill chart of the entire UK FIR should be provided on-line, overlaid with all current NOTAMs (including a 'click to reveal detail' tab, a 'save to scratchpad' feature and an ability to print out the scratchpad). Even better if one could add pushpin waypoints to define a track, then specify the 'route width' within which NOTAM information is sought.
No doubt there'll be NATS-apologists along to say how good their system is, or to plead poverty, but the simple fact is that this is the 21st Century and that user-friendly graphic interfaces are the norm.
I'm sure that there are third-party applications which do this sort of thing; however, unless NATS provides an official system (or contracts the requirement to an official service provider), there will always be doubts about the accuracy of the information presented.