Some savvy Twitter users with few followers are making extra money by linking to brands in replies under viral tweets, possibly breaking Twitter's ToS (Michael Tobin/Bloomberg)

Michael Tobin / Bloomberg:
Some savvy Twitter users with few followers are making extra money by linking to brands in replies under viral tweets, possibly breaking Twitter's ToS� —  - The recipe: Find a funny joke, spread it wide, link to brand  — At $20-$60 per promo, users say extra cash is nice to have