E-mail campaigns
Bulk email that goes out to your list of supporters, customers, etc. that utilize a system such as CiviCRM, MailChimp, iContact, or Constant Contact.

Web site design
Creating a new web site or redesigning an old one.

Web site hosting
A place for your web site and email to be hosted.

Web site maintenance
Maintaining and keeping your site's content up to date.

Drupal installs
Installing Drupal for your site, setting it up, creating a theme (look) for your site, etc.

CMS maintenance
Keeping your Drupal or WordPress installation and the third-party modules up to date.

CiviCRM installations
Installing, customizing, and updating CiviCRM for managing customers, supporters, etc.