It seems i'm gonna need to redesign a little bit the website, to make it more SEO friendly.
As of now, my category webpage is split vertically... and on the left i've got thumbnails of the products, with short descriptions. And i simply load the 'div' on the right, onMouseOver / onClick.
Adding text content would impact usability... in the end, everything a customer needs to see are pictures + a couple lines of text. But ... Content is King, i guess.
THANKS for your reply!