Use adsense, simply put a link to a website you create and have loaded up with ads and a high click percentage layout. Then make slideshows to maximize impressions. Most Twitter traffic generates $15-$20 RPM, so per 1000 hits you can make $15-$20. That isn't hard if you have a 15 page slideshow. You can also include CPA offer banners if it is related to your niche... although they don't convert well with Twitter...