First installment of social media marketing and content marketing quotes:

Adam Ostrow
As opposed to trying to attract millions of eyeballs and monetize them with ads, branded social networks are less about profitability and more about creating loyal and engaged customers that will ultimately create revenue in more conventional ways.
mashable.com
@adamostrow

Amber Naslund
Social media is, ultimately, an endeavor that a business must take responsibility for on its own. It can't successfully be outsourced long term if the company is to truly and authentically steward its own brand.
altitudebranding.com
radian6.com
@AmberCadabra

Ann Handley
One of the tenets of social psychology research is the prevalence of reciprocity: that people try to repay, in kind, what another person has provided.
marketingprofs.com
@MarketingProfs

Beth Harte
Social media is networking online vs. offline. It takes time whether it's online or offline…Do NOTHING without a plan. Otherwise you are spinning wheels, wasting time & resources. Social Media Return on Investment is doable.
theharteofmarketing.com
marketingprofs.com
@Bethharte

Ben Parr
If a potential customer comes to your company’s website and sees an active blog with insightful posts on how your company’s product helps customers, reads detailed posts demonstrating your company’s knowledge, and comes across a few case studies, they’re going to be far more inclined to come to you for their needs.
benparr.com
mashable.com
@BenParr

Bob Gilbreath
Marketing with Meaning is less about "context" -or finding the best time to get in front of a consumer's eyeballs -and more about "content" -or creating something that people find valuable in itself.
marketingwithmeaning.com
@Mktgwithmeaning

Brian J Carroll
Social media can be a bit like a bunch of people with megaphones blurting out their messages one-way. People will cover their ears (unsubscribe) and tune that out. Use social media to ‘listen’ to and learn more about your audience.
startwithalead.com
@BrianJCarroll

Brian Solis
Social media ―is only going to become more pervasive and as such, become a critical factor in the success or failure of any organization.
briansolis.com
@briansolis

Bryan Weiner
Social marketing eliminates the middlemen, providing brands the unique opportunity to have a direct relationship with their customers.
360i.com
@bwiener

Casey Hibbard
Now, so much of what we do happens online and we are less likely to see the customers face to face. It's a lot more global. It's more competitive. And people are more skeptical of marketing messages.
storiesthatsellguide.com
@casey_hibbard

Thanx to Prashant and Roshini(Kashwork) for helping me pull these quotes together.