The company started a blog, participated in LinkedIn LinkedIn and engaged on Twitter. Improve SEO During the past year, Delivra , an e-mail marketing service provider, has invested in B2B social media marketing, including presences on Twitter , Facebook , LinkedIn and a corporate blog, dubbed eMailChatr. “In the past nine months alone we have seen huge successes through the combination of blogging , Twitter , Facebook , online press releases, downloadable reports/case studies and Linkedin ,&# he explained. Learn more. For a niche community, that’s a feat.