The Missoulian is using the Click-Through method of charging for advertising.
Explanation:
The mouse-click button method imitates the feature. That way, an item can be pressed, as if the user clicks manually.
The click-through rate (CTR) of online publicity is the proportion of people who visit a website and press a particular ad on that page. Click rating tests how effective an ad is in catching the attention of consumers.
The higher the click rate, the greater the interest generated by the ad. A high rate of clicks can help a site owner by delivering advertising money.