Here is a useful snippet submitted by SHelfinger.EU.
When you activate a plugin in WordPress the author can place links in the plugin dashboard screen to show the users of the plugin links back to the plugin homepage, support page, FAQs or a way to contact the creator of the plugin.
By default WordPress will add the name of the author and a link back to the plugin homepage.
Using this snippet you can add extra links to this section like the image below from the Antivirus WordPress plugin.




