As you make your Joomla! site you will control the details of the display using options also referred to as parameters. Options control everything from whether the author’s name is displayed to who can view what to the number of items shown on a list. Default options for each component are changed using the Options button
Weblinks
Weblinks (com_weblinks) is a component that provides a structured way to organize external links and present them in a visually attractive, consistent and informative way. Help
Contacts
The contact component provides a way to provide contact forms and information for your site or to create a complex directory that can be used for many different purposes. Help
Random Image Module
This module displays a random image from your chosen image directory. Help {loadmodule random_image,Random Image}
Weblinks Module
This module displays the list of weblinks in a category. Help {loadmodule weblinks,Weblinks}
Content
The content component (com_content) is what you use to write articles. It is extremely flexible and has the largest number of built in views. Articles can be created and edited from the front end, making content the easiest component to use to create your site content. Help
Related Items Module
This module displays other Articles that are related to the one currently being viewed. These relations are established by the Meta Keywords. All the keywords of the current Article are searched against all the keywords of all other published articles. Help {loadmodule related_items,Articles Related Items}
Who’s Online
The Who’s Online Module displays the number of Anonymous Users (e.g. Guests) and Registered Users (ones logged-in) that are currently accessing the Web site. Help {loadmodule whosonline,Who’s Online}