From the acquisition of IndexTools, Yahoo! Web Analytics is born!
Yahoo! Web Analytics is an enterprise site analytics tool that provides real-time insight into visitor behavior on your website. With powerful and flexible tools and dashboards, Yahoo! Web Analytics helps online marketers and website designers enhance the visitor experience, increase sales and reduce marketing costs.
Yahoo! Web Analytics is a powerful, enterprise-class analytics solution that can serve the most complex and high traffic websites, by adding a simple tracking code to your web pages. Included are a host of standard reports and capabilities for creating custom-designed reports; each report is a departure point that lets you drill down for details, to look at trends, visitor paths, and individual visits and transactions.
Source : http://web.analytics.yahoo.com/