Are Your WordPress Plugins Secretly Injecting Links in Your Blog?

I built PocketSEO.com in WordPress because I haven’t used WordPress regularly since version 1.5 and I wanted to become more familiar with it. (I generally prefer Drupal.)

As I was experimenting with WordPress plugins and themes I noticed that they would often embed outbound links in my blog. I don’t mind a footer link to the developers’ Web sites (I keep my credits on a separate credits page), but I found one WordPress plugin called Gregarious that secretly embedded a hidden sitewide link in my footer:
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