What are your favorite push notification traffic sources right now?

[Luke]

Many of us are focused on push notification traffic right now and 2019 might be a the year of push If you are currently running push notification traffic, what are your favorite push traffic sources?

I setup the poll and you can select up to 3 push notification sources. The list was pulled directly from our Link Directory and if you feel we're missing a good one, reply and let me know.

I'm looking forward to seeing which sources get the most votes