I found this little widget that you can customise - AddThis
Essentially, it's an applet that allows you to add what they call smart layers, which are little widgets that appear over the top of the pages of your site, and allow for users to either share what they're viewing via a multitude of different social mediums, or to follow your social mediums on a separate bar, or even add a little box for recommended content etc.. I highly recommend checking out whether it could improve your site. No downloads, it gives you the raw div code you inject into your index/MyBB template/wherever.
Essentially, it's an applet that allows you to add what they call smart layers, which are little widgets that appear over the top of the pages of your site, and allow for users to either share what they're viewing via a multitude of different social mediums, or to follow your social mediums on a separate bar, or even add a little box for recommended content etc.. I highly recommend checking out whether it could improve your site. No downloads, it gives you the raw div code you inject into your index/MyBB template/wherever.