Yo se lo decía a mi jefa....

navegar en  internet (moderadamente) en el trabajo mejora el rendimiento laboral.

"The attraction of WILB, according to Dr Coker, can be attributed to people’s imperfect concentration. “People need to zone out for a bit to get back their concentration. Think back to when you were in class listening to a lecture – after about 20 minutes your concentration probably went right down, yet after a break your concentration was restored."

Por otro lado, como jefe preferiría que mis empleados estén en internet un rato, a que salgan a "volar" por ahí.