Social Media Examiner has some great suggestions for making sure your content engages your audience. Highlights include:

1. Curate and organize the best content to support your social media objectives
2. Post highly sharable content on facebook
3. Add humor and entertainment
4. Provide excellent content on a regular basis
5. Videos are often a top audience choice 

Learn more in the article: 26 ways to Create Engaging Content
Learn how to fine tune your content creation to get maximum impact.