Listening is a BIG part of becoming a successful freelancer. Here are a few of my favorite places to start.
Being Freelance (freelancer backstories from around the world)
Business Growth and Marketing
Confessions of a Pink-Haired Marketer (general marketing)
The Missing Link (a podcast all about using LinkedIn)
Paychecks and Balances (personal finance and career advice)
Levar Burton Reads (because grownups need stories too)