I write articles. I have clients who require me to embed the links of my resources on the article itself whenever possible. I also have clients who do not want to embed the links of other people's websites at their expense, which makes sense to me. If my memory serves me right, I heard in one of the Google Webmasters' videos that they recommend linking to your references on your article. The thing is, they get free links at your expense. I guess it does not make any difference if those are popular sites already, but what if they're not that popular? What's your stand on this? To embed or not to embed someone else's website's URL on the content that you have paid for?