Duplicating blocks in Drupal with MultiBlock module
If you want to duplicate blocks of content in Drupal and display them in separate locations on your site you'll quickly realise it's not a simple task. Sure, if your block is some text or images you can manually duplicate the block, but who wants to do things manually? It's more likely that you'll want to duplicate the block that was generated by a module. Modules are responsible for generating their output and this is (understandably) often a one-to-one relationship between the module and the block output.
The MultiBlock module allows the creation of instances of existing blocks. Once you create a new instance you can change the title, for example, and place it in a new location.
At present the module for Drupal 7 is available only in development rather than stable version but thus far I've not had any issues.