I don't really like the tag "marketing" for the question
What is a good way to concisely explain Bitcoin?
It sounds to much like this is a strategy-to-promote-bitcoin site instead of the factual Q and A that it is. But I wasn't immediately able to find any more appropriate tags for it. Anyone else have ideas?
Clearly this question and others like it need categorisation. But without resorting to meta-tags, what categorisation is appropriate?