Certain types of content work better on specific social media platforms. For example, Facebook, Pinterest, Google+, and Instagram are inherently visual, so striking, memorable images of your products, company events, and perhaps behind-the-scenes snapshots of employees at work can be effective choices for those particular platforms.
On Twitter, aim for the right balance of tweeting about your company and retweeting others' content. LinkedIn is famous for sharing company news, productivity tips, and thought leadership articles.
Mix up your content. Standout photos, short videos, useful links, helpful tips, thoughtful questions, polls, surveys, etc., will keep things exciting and fresh.