Objectives of knowledge management

1 
Web widgets. Web widgets have been used for a long time as part of affiliate marketing, 
but they are getting more sophisticated, enabling searches on a site, real- time price 
updates or even streaming video.
2 
Google gadgets. Different content can be incorporated onto a personalised Google 
‘iGoogle’ home page.
3 
Desktop and operating system gadgets. Microsoft Windows makes it easier to create 
and enable subscription to these widgets and place them into sidebars.
4 
Social media widgets. These encourage site visitors to subscribe to RSS or to bookmark 
the page on their favourite social media site such as Delicious, Digg or Technorati.
5 
Facebook applications. Facebook has opened up its API (application programming 
interface) to enable developers to create small interactive programs that users can add to 
their space to personalise it.
Web presentation and data exchange standards 
The information, graphics and interactive elements that make up the web pages of a site 
are collectively referred to as
content
. Different standards exist for text, graphics and 
multimedia.