Marketing is a business of ideas. Here are resources to keep up with what ideas are hot.
AdRants - published by industry insider Steve Hall
Adverblog - published by interactive marketer Martina Zavagno
AdverGirl - advertising executive Leigh Householder
Advertising Lab - focuses on advertising technology
Daily Carnage - handpicked list of the best marketing content
I Want Media - published by freelance journalist Patrick Phillips
Jaffe Juice - published by marketing consultant Joseph Jaffe
Marketing Charts - MarketingCharts is a hub for marketing data, graphs, and analyses.
Seth's Blog - published by marketing expert Seth Godin