I know a lot of popular social networks such as LinkedIn, Twitter, Facebook, YouTube, and Pinterest. As a marketer, I always wondering which social network should B2B business pay attention to, and I think it depends on which social networks our audiences use. For example, if our target audience would like to use LinkedIn, and LinkedIn is more effective for lead generation than Facebook and Twitter. Because LinkedIn provides the most transition into social media for many B2B organizations, and this is the reason for LinkedIn more professional.
LinkedIn's Newsfeed become a content delivery tools for B2B, and LinkedIn has numerous features can help B2B connect with people to make purchasing decision and critical recommendations.
Otherwise, LinkedIn provides dedicated tabs on the company page which can promote their products and services, company can create different variations of the tabs and targeting them to different buyer personas.
Moreover, If our company managing a group on LinkedIn, we can established a group for our company trade, and then send emails to those group members to promoting our latest marketing initiatives. Because LinkedIn allow company send email per week to group.
Plus B2B company can use LinkedIn answers to improve marketing, that is a place for people to ask and answer questions, which provides for great thought leadership opportunity and make network with industry influence. Company can promote own content when answering other's question, use the questions people commonly ask as topic fodder for your company website or blog.