The singer's interaction with her fans is responsible for around a third of her $90m (£56.8m) fortune, experts at the Wall Street Journal claim.
The figure was calculated by taking into account GaGa's 20.7m followers, who are more likely to buy her music legally because of the bond she has created with them.
The publicity and direct access Twitter gives GaGa was also considered when coming up with the numbers.
Marketing expert John Bonini explained: "[GaGa] really engages [her followers] and retweets stuff they say as if she was one of them."
GaGa set a worldwide record earlier this month when her follower count on Twitter rose above 20m.
The star has also revealed that she will not talk to the press after an interview with Oprah Winfrey is broadcast on Sunday (March 18).
Watch the music video for Lady GaGa's 'Marry The Night' below: