Blog post

Hi, I am trying to setup a site where I can create users and then I want to be able to show that user certain posts (category). Is there a plugin out there that can do this. Maybe have a module when creating a post that lets you assign that post or category to a user from a dropdown list?

For example: I would create a user called “Rahul”. I will then create a category called “Private Posts”. Once I have created a few posts in her category she will login and see a page displaying only the posts I have created in her category.