Drupal does not have any special web hosting requirements. You can host a drupal site with any PHP / MySQL web hosting provider. However there are some web hosts which provide some excellent support and features for Drupal sites. Most drupal hosting companies will provide you with Auto Installation or Free drupal installation.
You will stumble across several drupal hosting providers , here are few things you can check for.
Drigg is a powerful Drupal module written by Tony Mobily, that allows you to promote stories automatically based on your users' votes. Unlike other Drupal and non-drupal solutions, you can do this with amazing simplicity.