According to the Microsoft AdCenter blog, they’ve updated their Demographic keyword research tool to better find keywords and plan campaigns. For example, knowing what percentage of searchers using a particular keyword phrase will help to determine whether ranking in MSN Live search is worthwhile since the search users in that engine leans towards women.
This tool coupled with the Audience Intelligence tool which gives you an idea of the commercial value of a phrase are excellent keyword research tools for SEOs and PPC marketers alike. Using the Audience Intelligence tool with the query setting, enter a keyword phrase. The closer the number to one reflects the propensity of the web searcher to make a purchase. A phrase over 0.5 tends to be a more commercial keyword. This helps to eliminate wasted marketing dollars in PPC and SEO for keyword phrases unlikely to convert to sales.