Example of the common trick I used:

*Consider this inside my website

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Click here to download

I want to buy now!

Get me a Free copy!
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Here's an example of using my-linker to cloak affiliate links. Try to roll over the links and see the link that will be displayed.
You will found:

http://www.my-linker.com/hop/example_no_1
http://www.my-linker.com/hop/example_no_2
http://www.my-linker.com/hop/example_no_3

However this is still a good way to cloak your affiliate link instead of using the original affiliate link. And instead of "my-linker", there are much more cloak programs available outside. I used "my-linker" for the example because "my-linker" is quite familiar to Wealthy Affiliate member's and it can be found inside Wealthy Affiliate.