Wordpress Duplicate Pages - What Is The Easiest Way

[cecilio]

A run a blog off Wordpress and I'm having duplicate content issues. I've noticed that if I link to another one of my sites the link will show up from 1. The "main" post and 2. The "tag" category. Therefore I am creating some duplicate content in the eyes of search engines.

I have downloaded "Wordpress Duplicate Content Cure" plugin but i'm still seeing duplicate content show up.

What would be the easiest way to fix this.

Thanks