Drupal is a Content Management Framework (CMF), it is used to build a CMS
example, enable the Administration Menu module and disable the default Toolbar module
drush pm-enable admin_menu admin_devel admin_menu_toolbar
drush pm-disable toolbar
Pathauto
create SEO and user friendly urls inplace of 'node/3'
Chaos Tools Suite
Entity API
provide APIs for other modules
Views
Webform
create forms
Administration Menu
easy to use / dropdown administration menu
IMCE
Managing files when editing articles
Google Analytics
CKEditor
Link
add a field with links to external website
Backup and Migrate
Views Slideshow
Colorbox
show media inside popups
Rules
When do drupal Context settings:
If ‘met all conditions’ is not ticked, seems like the ‘path’ condition is used first, even it may befind the ‘Node’ item in the settings page, weird.