When you start a new Drupal website you have just a few modules installed so looking for the right one is not going to take a long time, however, as you progress in your developing content for the website, add more services and more interactivity, become more social and link Facebook/Twitter/ LinkedIn widgets and sharing buttons, add slideshows, ecommerce and who knows what else…..then, your modules are all over the place.
A minor update is when a new release of the same version number comes out, ( 7.0 to 7.1 and so on). This updates are normally patches for stability and/or security, usually do not include any major change to the core system.
If you are reading this page probably you have already noticed that Google display ads with an annoying yellow colored background, (see image on the right). Google uses the “ins” tag by default in order to wrap this ads and many CMS systems and Themes, (WordPress / Drupal and such), assign a light yellow color for this tag.