Hello Yannis,
To be honest, I couldn't find this extension on JED even I searched parallax blog etc. But when I searched it on Google, I found a page on stackoverflow-like web site, where a user was recommending your component. So, I kindly invite you to review how the users search for this product and add these keywords on your JED page.
I searched for parallax blog posts. It can also be filtering Joomla blog content, dynamic tag filtering for Joomla.
Enjoy.