A FRESH protest campaign is set to roll out this morning as advertisers return to Alan Jones's radio program.

The Macquarie Radio Network last week took the unprecedented step of suspending all advertising on Jones's 2GB breakfast show after a week of public pressure following outcry over his comments about the death of Julia Gillard's father.

Alan Jones ... sponsors have returned to his show. Credit:Dean Sewell

The show lost more than 70 sponsors and advertisers and the suspension was expected to cost the network more than $80,000 a day.

A massive social media and email campaign targeted businesses seen to support the Jones program after news broke of Jones's comment to a Young Liberals function last month that the Prime Minister's father had "died of shame" over her "lies".