Is there a regular time when new portals are added to the game, or is it just whenever the devs do it? For example, are there updates every Monday morning, or the first Tuesday of the month, or is it more irregular than that? Alternatively, is there some notification that new portals have been added?
It would be nice to know, so I could just look for new portals then, instead of all the time. I'm in a city with only a handful of portals, and enough players that new portals will be snapped up right away. I'd like to be that guy ;)