Social Mention monitors 80+ social media properties directly including: Twitter, Facebook, FriendFeed, YouTube, Digg, Google etc
Services provided
Social Mention currently provides a point-in-time social media search and analysis service, daily social media alerts, and a third-party API.
Support of "strength"
Strength is the likelihood that your brand is being discussed in social media. A very simple calculation is used: phrase mentions within the last 24 hours divided by total possible mentions.
Support of "sentiment"
Sentiment is the ratio of mentions that are generally positive to those that are generally negative.
Support of "passion"
Passion is a measure of the likelihood that individuals talking about your brand will do so repeatedly. For example, if you have a small group of very passionate advocates who talk about your products or brand all the time you will have a higher Passion score. Conversely if every mention is written by a different author you will have a lower score. Most frequently used keywords and number of times mentioned. Number of mentions by sentiment.
Extended "reach"
Reach is a measure of the range of influence. It is the number of unique authors referencing your brand divided by the total number of mentions.