Every company has in-house experts. So why don’t they use them more?

In-house experts, with their specialized knowledge and skills, could be invaluable to both colleagues and managers. But often workers who could use their help in other departments and locations don’t even know they exist.

Talk about a waste! Because of an inability to tap expertise, problems go unsolved, new ideas never get imagined, employees feel underutilized and underappreciated. These are things that no business can afford anytime—let alone in this tough economic climate. Which is why so-called expertise-locator systems have become a hot topic in corporate IT.

To date, most such systems are centrally managed efforts, and that’s a problem. The typical setup identifies and catalogs experts in a searchable directory or database that includes descriptions of the experts’ knowledge and experience, and sometimes links to samples of their work, such as research reports.

But there are gaping holes in this approach. For starters, big companies tend to be dynamic organizations, in a constant state of flux, and few commit the resources necessary to constantly review and update the credentials of often rapidly changing rolls of experts.

Second, users of these systems need more than a list of who knows what among employees. They also need to gauge the experts’ “softer” qualities, such as trustworthiness, communication skills and willingness to help. It isn’t easy for a centrally managed database to offer opinions in these areas without crossing delicate political and cultural boundaries.

The answer, we think, is to use social-computing tools.

Activities and interactions that occur in blogs, wikis and social networks naturally provide the cues that are missing from current expertise-search systems. A search engine that mines internal blogs, for example, where workers post updates and field queries about their work, will help searchers judge for themselves who is an expert in