Copying thing is not a big idea but we can inspire from the successful project.
Pinry is an open source application that facilitate to create pinterest.com like website.
Yes doesn’t be surprise this is true now you can have pinterest like home page (dynamic grid webpage layout) and can perform almost all kind of function and extend it to a level what actually pinterest.com does offer.
The application is built with Python (Django) and it is a good starting for creating a community around pinning contents or a bookmarking site for personal use.
|[button link="http://getpinry.com/" size="medium" target="_blank"]Website[/button]
||[button link="http://demo.getpinry.com/" size="medium" target="_blank"]Demo[/button]
||[button link="https://github.com/pinry/pinry/" size="medium" target="_blank"]Download[/button]