Be warned of transparent affiliate links. Summary: They highjack on_clicks
In an earlier story on how to "fly for free" a commenter was downvoted for explaining the entry contained affiliate links.
http://news.ycombinator.com/item?id=1428051
Most people who checked looked at the hover and the source -- but likely did not click the link.
The blog/whatever has direct links to the product page, but skimlinks.com highjacks the onClick event and redirected to the affiliate site.
Just FYI
1 comment
[ 3.6 ms ] story [ 14.1 ms ] threadThe author upgraded to paid WP account, to remove the affiliate code.