Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
These tags mean basically the same thing and should be merged. The canonical tag should be "advertising" because it is used more and because "ads" is a short form of it.
Missed this one...
My preference would have been to leave advertising, which is the practice, and ads, which are the elements, as separate tags.
Not sure if this can be reversed at this point however.