Economic effort whose purpose is to make it possible to make money from something that would otherwise have to be given away for free. A great example is the targeted advertising on Google. That advertising lets Google monetize (make money from) the search engine service, which it has always had to give away for free.
Google and Facebook both provide services that huge numbers of people use frequently, services that no one had thought of before they were created. The difference between the two companies is that Google has successfully monetabilitized its search engine, but Facebook has not successfully monetabilitized its social network service. The effort to do so is why it repeatedly violates users' privacy and will continue to do so.
Also see antidismonetizabilitizationism, which is one letter longer than antidisestablishmentarianism, which was the longest word in the English language until Mary Poppins came along.