Want to Learn Digital Marketing must follow this blogs

AdWords Blog 

 The definitive place to get officially sanctioned news about new AdWords features.

Search Engine Land

 The industry`s go-to source for both breaking headlines and comprehensive analysis. The host the SMX conference every year.

Search Engine Watch

 A wide range of coverage of everything that`s going on in digital marketing,plus analysis of developing trenda and actionable how-to articles.

Search Engine Journal

 Diverse and reliable source of internet marketing news with it`s finger on the pulse of everything search, social, SEO, and content, and host of the SEJ Summit.

SEM Post

 Always one of the first site to break news stories about the industry`s biggest events.

Moz

 Top tier-content, from Rand`s whiteboard Fridays to Dr. Pete`s analysis of search`s enimas-there`s always something worth reading (or watching.)

Distilled 

One of the best sources for PPC, SEO and digital strategy, brimming with genuine insight and a keen eye for trends.

Search Engine Roundtable

 Between daily recaps, the active and engagin forum, and regularly posted video content, there`s enough to keep even the most diligent newshound satisfied.

Media Post

One of the most comprehensive online advertishing, digital marketing, and media news sources, among the first to break major stories.

Small Business Trends

 Covering every thing from venture capital development to trends in entrepreneuriaslism and striking out on the your own.

Social Media Today

 Featuring a wide range of content beyond it`s hard news coverage, SMT is an indispensable ally to social media marketers who need the latest news.

SocialTimes

One of the very best places to get social media news from an advertising-centric perspective.

Social Media Examiner

 The blend hard news and applied strategy should put SME on every social media marketer`s to-read list.

Buffer

With their radical approach to corporate transparency Buffer has continued to raise ther bar with the quality of their content and timely insights into treanding topics.

Mashable

 One of the titans of internet publishing with a social media following of tens of millions and some of the best marketing news content.

Copyblogger

 For content marketers seeking to hone their craft, Copyblogger is an invaluable resource.

Contently 

An awsome free portfolio builder for content producers and journalist who`ve made the switch to content, plus two excellent blogs/newslwtters.

Content Marketing Institute

The Most vocal advocacy and support organization for content produycers of all type, the CMI blog and whitepapers are essential.

COSchedule

Actionable content tips and their Headline Analyzer, a great free tool that evaluates the strenght of your headlines.

PPC Hero Blog

Super in-depth PPC marketing news and case studies.

Wordstream Blog

Covering the latest in online advertising and internet marketing, attracting over a milloin visitors per month.

The Verge

Intelligent, insightful social media news (along with other fascinatingly geeky stuff) and an incredibly wide editorial range.

Ars Technica 

Timely reporting on the hottest trends and breaking news in search social media and a fearlessly independent editorial stance.