I am not a big fan of unsolicited ads, so you can imagine how annoyed I was when I started receiving ads in the notification area of my phone prompting me to install random apps. I wasn't sure when or why it started happening, but after a little research I quickly discovered that I was not the only unhappy recipient of this type of ad.
These ads are known as Airpush advertising. As described by the company itself, Airpush is "a mobile ad network based around an innovative ad unit - the push notification ad." The company goes on to tout itself as "a paradigm shift in mobile advertising, which provides a superior experience for developers, advertisers, and users.” That last part is quite questionable, though.