I had an interview last week and there was no mention of salary. There are several positions available and they all pay slightly different. I got a call about a second interview scheduled for next week

If they don't bring up salary, is it ok for me to do so? I have interviewed other places and if I get lucky (doubtful but who knows) and get multiple offers, salary would definitely be a factor in my decision.

I've read its taboo to ask unless they bring it up, but maybe that's only in the first interview??