More and more of the applications we use every day are moving online. Microsoft SharePoint, Salesforce and Google Apps are some of the more popular web based applications, but most industries have their own (often expensive) industry specific web applications.
LicenseMetrics tracks what web applications are being used, what features within those applications are being used and who is using them. For example, LicenseMetrics makes it easy to identify how many users are using their Salesforce account and how many users actually require the edition that has been purchased.