We all know that the Internet is not a static entity. Whenever you open your browser there are literally millions more pages that you can access than the last time you logged on. So how do we make sense of this amorphous and growing body of information? The traditional answer to this question is to simply use a search engine: 'Google it!' The problem is, however, that even Google is struggling to keep up with the exponential growth of all the information out there. It does a fantastic job scanning the digital horizon, as it were, and bringing you all the information related to your search query. The problem lies in the ‘all’.

Not everything that is returned as part of search results will be relevant. The query ‘stars’ can, for example, return information about the solar system, celebrities, kindergarten reward systems and quite a few sports teams. Narrowing down your search by using certain keywords will help but will not always solve your problem, meaning that you might have to wade through pages and pages of irrelevant results before finding the piece of information that you are looking for.