question about module in application

Hi, I've been asked to develop an application with two modules, an online store for selling digital books and the other module is a special page where my client wants to post poems and let the users put comments on the publications. This page must look like facebook's news feed. I think the closest thing similar to this is a forum. 

I don't know if I should include another application into my application or write the code myself. Your comments are appreciated.

For selling the books your better off using a pre-built shopping cart.

For the poems you can just use a blog that allows comments.

Hope that helps.

What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )

Thanks

For the poems you can just use a blog that allows comments.

Do you know any good software made for code igniter or something coded in php?

You can use Wordpress together with WooCommerce.