Many online celebrities would agree that the best way to maintain an audience is to keep them laughing. Forbes reports that half of the top-earning YouTube channels are comedy-related. Revenue is generated from advertisers, who pay according to the CPM (cost per 1,000 ad impressions). Lilly Singh, a YouTube comedian known by her fans as Superwoman, had more than 42 million views in the past month alone and is estimated to make $2 million yearly according to Social Blade, a YouTube stat monitor.