Drupal Gardens like website
You can use Domain access module.


  The Domain Access project is a suite of modules that provide tools for
  running a group of affiliated sites from one Drupal installation and a
  single shared database. The module allows you to share users, content,
  and configurations across a group of sites such as:
  
  
    
    example.com
    one.example.com
    two.example.com
    my.example.com