The “follow dataset” option is great but can be time consuming and sujbect to errors. To mitigate for this, an example of features : 

• For each dataset, allow the admin to chose between sending notifications automatically or manually
• For the automated part, allow the admin to chose the frequency of notifications : “for every update” (might ne be ideal for datasets updated daily), “max once a day”, “max once a week”, etc
• For each dataset, allow the admin to save a default text, ideally with multilingual option and rich text instead of plain text