hey! so i've been playing for a bit now and noticed that the main income source is from shortlinks or "cash-links", correct (appart from the cpu miner thing, but i am talkign about how the general gameplay is funded). i havent checked recently but a week ago i found some shorteners in the rotation which didnt redirect well or were even gone from their url.
so i'd just quickly want to mention that there might be a few shortlinks that arent in use that could monetize the game well. for a nice list of shorteners and info about them there is a list at
http://randomsatoshi.win/shortlinks/ browse it for a bit and you might find a few new ones that are worthy to try

hoping it will work well for you!