If the goal is to measure traffic, sales or SEO ranking, we can take a more quantitative approach. There are some free tools that can help with this type of measurement, including:
1. AideRSS allows you to enter a feed URL and returns statistics about its posts, including which are the most popular based on how many times they are shared on a variety of social networking sites such as Orkut or Facebook or twitter
3. Xinu is a handy website where you can type in a URL and receive a load of useful statistics ranging from search engine optimization (SEO) to social bookmarking and more.
In addition, you might look at how many people join your social network (or become your connection) in a given period of time, how much activity there is in your forum or what the click-through rate is to your product pages from any of these platforms that result in direct sales.
The key takeaway is that regardless of how your company chooses to measure engagement, is that you have a success metric in mind before you begin. Without some sort of benchmark, it’s impossible to determine your ROI. Thus the metrics don’t matter as of now, the process matters.