Migrate Extras | drupal.org
Migrate Extras is a package of modules that integrate the Migrate Module with many of the non-core modules available for drupal, allowing you to import content from other modules, older versions of drupal, or a non-drupal CMS.
If you need to import content for a module not listed here, you can add a feature request to the issue queue, or you can use these modules as a guide on how you can use migrate api , and write the module yourself. Creating these integration modules is usually straight forward, but may require a proper understanding of a contrib module's apis, along their features and limitations.
For more information on the migrate api, see the Migrate Documentation The migrate module's api is still being developed and has no stable release. Changes is the migrate module's API may break some or all of these integration modules. Make sure you backup your system regularly to avoid lost data.