Go to: http://en.wikipedia.org/wiki/Business_Intelligence for a strong overview of Business Intelligence.

Highlights:

BI is a set of business processes for collecting and analyzing business information.

Some people use the term "BI" interchangeably with "briefing books" or with "executive information systems", and the information that they contain.

BI gathers information in order to assess the business environment, and cover fields such as marketing research, industry or market research, and competitor analysis.

Competitive organizations accumulate business intelligence in order to gain sustainable competitive advantage.

BI often uses Key performance indicators (KPIs) to assess the present state of business and to prescribe a course of action.

Each business intelligence system has a specific goal, which derives from an organizational goal or from a vision statement.

Persons involved in business intelligence processes may use application software and other technologies to gather, store, analyze, and provide access to data, and present that data in a simple, useful manner.

Conceptually, PR aligns to the BI process. 

Our firm is currently involved with several BI projects on behalf of our clients.