Is there a character limit for keywords? If yes what is it?
It's actually very interesting to realize: I do not recall ever having been asked that question before, in many years working at AdWords. ;)
Of course my memory is not the world's best, either.
So far as I know, there is not such a limit. In the same breath, though, I'd add that I would never consider using keywords that users would not likely want to type when doing a search.
Although I do not have actual stats to back me up, it is my guess that most users type in two to four (or maybe five at the outside) words in their typical search, and that they tend to be shortish words rather than longish words.
Especially spelling impaired folks such as myself. :)
Anyway, just my $0.02.
AWA
