Drupal Stuff

Read about feeds.... http://drupal.org/project/feeds

Importing and Aggregating Stuff with Feeds

http://developmentseed.org/blog/2009/dec/15/importing-and-aggregating-st...

Node import / Node Export

Moving Entire Drupal Site with Databases

http://drupal.org/node/120627

how to move content from one drupal installation to another.

http://drupal.org/node/513476