Thesaurus web

Hi everyone! This is a small website project about investigations, books and magazines.

Due to the extension of the web, I didn't need to make a user test. However, like anecdote the I got some wordpress ' problems wih taxonomy due to the homologation of content.
(You can read more about it here: http://blog.foobored.com/all/wordpress-tags-with-commas/)

Thats why for most of the projects, you must consider content first and that was the main challenge. Organize all the information as a thesaurus.

The project actually is public *: http://cise.pucp.edu.pe/observatorio/

Prototype's link : https://x5dfg6.axshare.com/#g=1
*Design' UI wans't made by me

Suggestion are always welcome!
Thanks for the support!