Rachel Happe has a great list of Social Media Metrics. If you’re looking for ways to measure the impact of social media tools in your organization, Rachel’s list will have you thinking about:

Activity Metrics like: comments & trackbacks, number of contributors, time spent on site, and most active contributors

Survey Metrics like: quality and speed of issue resolution, and referral likelihood

ROI Measurements like: Number of new product ideas, % of ideas from customers/prospects/community, and Revenue/Adoption rate of new products from community vs. traditional sources

Got more? Email her at rhappe [at] idc.com