1. Brooke Hammerling
Brew Media Relations

Brooke runs her own agency, with what would mostly be considered B-list clients [See update below]. Yet she's so influential that when she hosts her legendary annual dinner at CES, the likes of Walt Mossberg sit at her table. Getting the biggest names in tech journalism together is big. But the way you can really tell Brooke is a power player? She makes them pay for themselves.

UPDATE: Brooke wrote me to complain that her clients, which include GroupMe, General Assembly, Zong, NetSuite and Larry Ellison, One Kings Lane, Bluefin Labs, GetGlue and more, are not B-List. This is why you're on top of our list, Brooke.