If you want to hide affiliate links from your users and avoid Page Rank leakage then Simple Link Cloaker can help you. Using its simple interface you can convert a long and ugly link into one that looks like
http://yourdomain.com/visit/link-slug/.
Here are some advantages of using this plugin:
Fast & Simple: It has a really easy-to-use and fast interface using which you can cloak dozens of links in a matter of minutes.
Redirection Types: While cloaking an affiliate link it allows you to choose from two redirection types. You can either select 301 permanent redirection or 302 temporary redirection.
Multiple Link Structures: The links created by the plugin have this structure:
http://yourdomain.com/visit/link-slug/. However instead of the word 'visit' the words 'out' and 'go' can also be used without any issues.
If you find this plugin useful please consider giving it a good rating.