Similar to What are good rules for naming menu items?, what are good tag naming conventions?
For example, should one pluralize the topic (wavelets) or always use the singular (wavelet)? Is it better to choose the shortest possible synonym or the least ambiguous (code c++ vs programming c++)? Should one use the active verb form (tagging) or the noun/name form (tags)?
To demonstrate I suppose somewhat ironically, I've tagged this question with both already available tags, tagging and tags.