Social media - what can be measured?

1. Online mentions across blogs, microblogs, message boards, wikis, social networks, video-sharing sites, and mainstream media
2. Daily incoming traffic volume and trend analysis
3. Tag cloud analysis to show what words are being used in association with your brand
4. Tag cloud analysis in association with your compitetor's brand
5. Segmentation - gender and age analysis
6. Most active and participating domains showing results of your brand
7. Geographical distribution (national and international)
8. Positive and negative sentiments around your brand
9. Comment metrics from forum and message boards
10. Facebook fan page analytics and metrics
11. Twitter follower count and growth, relate it to the campaigns to measure the success

Additional reference(s):

1. Measure What Matters: Online Tools For Understanding Customers, Social Media, Engagement, and Key Relationships
2. Social Media Metrics: How to Measure and Optimize Your Marketing Investment (New Rules Social Media Series)