nice thought, bad idea
here's why: Although most ads today are paid to publishers based upon the number of clicks they receive from "unique" IP addresses, it is against the rules of most ad networks for a publisher to solicit clicks from the users of their site so I won't go there.
And actually any single users clicking multiple times on ads or with a regularity that can be perceived as automated, can get a site blacklisted by advertisers/networks so good intentions could have negative results.
The ad networks want natural clicks from site users i.e. you see an ad that looks like something of interest to you and you click through to see what it is about and they are pretty good about identifying clicks that are generated purely for the purpose of generating money for the publisher. Consider how huge my "big brother" Google is and that most of their revenue comes from ads on sites like this and you can get an idea of how much effort and money they invest in this process.
But regardless of any of that I would not encourage this since if I was an advertiser paying for an ad, I wouldn't want to just pay for clicks that were not from people genuinely interested in whatever I was advertising.
If anyone has a business or works for an organization that could benefit from being a sponsor of this site, I'd very open to doing some promotion for them via links, ads or other options.