... picture of the size of the Internet, let alone to make an estimation of the amount of information that is available on or through it;• The dynamic nature of the information on Internet: information ... which information is, and which is not stored in these databases. Combining the stored data to extract valuable information from it (for instance, by discovering interesting patterns in it) ... requests to suppliers offering this information. The individual supplier's responses are unified into a single package, and maybe the entries are sorted according to some to the inside,...