I'm making 400 dollars a week from twitter alone, and that's only because of tweet attacks.
I wasn't making anything before, you got to learn the ins and outs of twitter advertising, or just learn twitter in general, learn how to scan for your own proxies, or buy some.
Every other tool i tried for twitter was barely pulling its weight, tweet attacks opened a whole new world to me, there is still always money to be made, no matter how saturated it is.
here's a bit of advice while using twitter, don't spam to spam.