Buy a host and a universal domain like for example reviewhostel.com
Then add your affiliate links or what ever links you want to hide using the directory folder as the link.
so if I was going to hide my affiliate link for example a adsense book I would do something like this
reviewhostel.com/bestadsenseguide/
and then use a simple redirect script as the index.php or just use .htaccess to redirect to you link.
Actually USE .htaccess to redirect to you affiliate link.
Best regards,
Egill St.
p.s. If you also want search engines to pick your link up and crawl your site, you could actually have a review about the ebook on the reviewhostel.com/bestadsenseguide/ url and then have the link to the product using your affiliate link reviewhostel.com/bestadsenseguide/details/ and make the htaccess redirect to the product site with your affiliate ID.
Search engines will not ban your site and you look more legit doing this.