A lot of these articles and so much more are Pinned on this Pinterest page, by Nicole Perri and yours truly.
The Anatomy of a Killer Facebook Ad Campaign [Infograpic]—JeffBullas.com
Facebook Fanpage Timeline Tutorial—Mindjumpers.com
How to Use Facebook Insights—ReadWriteWeb.com
Pinterest Marketing Strategies[Infographic]—populateddigital.com
How to get more repins [Infographic]—Danzarella.com
Optimize Your Pins—Search Engine Land
How to run a successful Twitter contest—SocialMouths.com
How to use Instagram for Marketing—Pamorama
Other marketing tips and strategies:
7 Things Never to Do On Your Blog—Smedio.com
The Best Way to Get Your Blog Out There Fast—DesignSponge.com
The Business of Being Social—Parature.com
Pros and Cons of Each Social Media Site [Infographic]—SocialTimes.com
Increase blog visibility with social sharing—Social Examiner
Marketing and PR Resources:
How to succeed at social media—PushingSocial.com
Free Ways to Market Your Business—Mint.com
Media Bistro—Is a great site to sign up for if you’re pitching an article or pitching your blog.
HeartIFB.com—Even though they are for fashion bloggers, their content is top-notch for any blogger.