Sure, social media makes communication and promotions easier in some ways, but it doesn't negate the need for professional public relations experts.

当然，社交媒体使沟通和宣传活动在某些方面变得更加容易，但它并没有否定对专业公关人员的需求。

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The field also dances along the edges of customer service, IT, public relations, marketing and sales, according to the Social Media Influence report.

在企业中，社交媒体一般游走在客户服务、IT、公关、营销和销售部门的边缘。

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The M.insight application sorts the feeds into four main categories: social media, public relations, marketing and branding, and advertising.

insight应用将订阅源分为四大类：社会化媒体、公共关系、营销和品牌，以及广告。

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Adept public relations and the sophisticated use of social media, for example, are becoming mainstays of the marketing activities of many venture capital firms.

FORBES: Venture Capital Firms on the Road to Thought Leadership

Social media marketers, including strategists, gaming professionals, and public relations consultants, among others, predicted the future of Facebook as an advertising and marketing tool and discussed how the IPO will affect membership growth and spending in the near future.

FORBES: How The Facebook IPO Will Affect Growth & Investments

How consumers obtain information on products and services is moving from traditional advertsing and PR (public relations) focused through mass media to networks with common interests in social media.

FORBES: Compete to Win, Don't Play "Catch Up" - Colgate's Big Opportunity