If I would get a dollar for every time I hear this (or preferably a Euro, because I'm a Dutch girl), I would be rich by now! Information Worker is one of the competencies of Microsoft to become a Microsoft Certified Partner. And yes.. one of products within that competency is SharePoint.

But Information Worker is also a concept. The information worker from an organisation's point of view is a person who has, based on the role and function he has within the organisation, to make decisions, collaborate with team members, give and get information. To get his information he needs the proper tooling, programs, reports etc. in order to do his work.