Social Media Metrics to Measure

• Activity Metrics
  Pageviews
  Unique visitors
  Members
  Posts (ideas/threads)
  Number of groups (networks/forums)
  Comments & Trackbacks
  Tags/Ratings/Rankings
  Time spent on site
  Contributors
  Active contributors
  Word count
  Referrals
  Completed profiles
  Connections (between members)
  Ratios: Member to contributor; Posts to comments; Completed profiles to posts
  Periods: By day, week, month, year
  Frequency: of visits, posts, comments

• Survey Metrics
  Satisfaction
  Affinity
  Quality and speed of issue resolution
  Referral likelihood
  Relevance of content, connections
  ROI Measurements

• Marketing/Sales
  Cost per number of engaged prospects (community vs. other initiatives)
  Number of leads/period
  Number of qualified leads/period
  Ratio of qualified to non-qualified leads
  Cost of lead
  Time to qualified lead
  Lead conversion
  Number of pre-sales reference calls (to other customers)
  Average new revenue per customer
  Lifetime value of customers

• Customer Support
  Customer satisfaction
  Number of initiated support tickets per customer per period
  Support cost per customer in community
  Product Development
  Number of new product ideas
  % of ideas from customers/prospects/community
  Idea to development initiation cycle time
  Revenue/Adoption rate of new products from community vs. traditional sources

• HR
  Retention/Employee turn over
  Time to hire
  Prospect identification cost
  Prospect to hire conversion rate
  Hiring cost
  Training cost
  Time to acclimation for new employees
  
  
  Props to : http://rhappe.typepad.com/thesocialorganization/social-media-metrics.html