Assembling a social media guide, what are the most frequent questions you have regarding social media?

My team is working on a on guide to answer the top 20 commonly asked
questions regarding social media, along with some more niche focus
guides. I would love to get some input from the community and any good
links to similar resources.

Examples:

Do you find that professionals are more likely to ask about blogging or more specific sites like Linkedin?

What is RSS?

What is Twitter?

How do I track ROI for social media?

etc, etc.

Any ideas and commentary welcome.