It can be worrisome to consider a complete overhaul of your website, especially when it involves switching to a different platform. As experienced Drupal advocates who are passionate about all that Drupal provides our clients, we must go on record as saying, "It's worth switching to Drupal." The good news is that you don't have to go it alone. Drupal Partners has a portfolio full of examples and years of experience migrating sites to Drupal. Is your site using Sitecore, Liferay, Wordpress or another non-CMS platform? Ready to switch to the most secure, largest, open-source CMS solution in the world, already used by the White House, the Weather Channel and US Weekly magazine? Drupal Partners are your migration experts.
There are basically three types of modules for Drupal: