Drupal 7 Essentials: These modules should be included on all Drupal 7 sites. Please check and make sure all these modules are installed on Drupal 7 sites. IMPORTANT NOTE: Please check in theme, if the module is already installed.
Humans are visual by nature. And nothing jazzes up a website, with very little effort, like a slideshow. For most sites, this is the first thing on the home page. It also makes it nice and easy to keep your visual content updated.
Drupal is an Open Source Content Management System (CMS), which means it is available for free use but you still need to maintain Drupal sites and that is not FREE. Why is that? On a simpler philosophical level the answer is “Time is Money”.