Plugin for maintaining texts

I have a homepage containing of lots (at least some) texts that are meant to be read by the visitors of the homepage.

Now I am looking for a plugin that can handle a lot of texts.

I want the plugin to make it easier to handle all the texts and maybe have some of these functions:
– A search-function. To make it possible to make searches throughout the whole bunch of texts.
– A rating-function. So visitors can rate the texts separately.
– And maybe more functions…

The page I need help with: [log in to see the link]