Ads help app developers release “free” apps, but they’re still able to make money through ad networks. Ads help content providers “pay the bills” so they can write content that you and I like to read, watch, or listen to.

Love them or hate them, ads are what let you get your apps and content for “free”.

Recently, T-Mobile USA updated one of their apps and “accidentally” included the ability to push ads into user’s notification bar — a space that’s supposed to be reserved for “important” information.

T-Mobile later apologized, but it’s got us asking, where are ads acceptable, where are they tolerated, and where should you never have to see an ad?