I'm thinking more big-picture stuff about trends and its future, rather than how-to guides for Adwords users or those who want to make money from their Tumblr.<p>Is there anything readable, entertaining and forward thinking, perhaps along the lines of Seth Godin or Daring Fireball?
affbuzz.com is an aggregator of all the affilate and internet marketing blogs. It's a relatively young industry, and the content creators are young as well. I expect you are seeking deeper intellectual content rather than how to make a quick buck, but you should find it interesting nonetheless. Searching through some of the blogs will find you many intriguing case studies, trends, and unexpected marketing avenues. The most popular ones are on top.
I write a blog about "digital strategy" (the ad industry insider-speak for what you're talking about) at <a href="http://www.joshklein.net" rel="nofollow">http://www.joshklein.net</a>. Most of my posts are about big brand strategy from inside an advertising agency, but I also think startups should know about many of the same things.
I subscribe to adexchanger's news letter which covers industry trends and what-not.<p>There is a lot of noise, but good coverage of the big players / industry level news.<p>www.adexchanger.com