A wonderful autotagging addon to any website was Jiglu. They would automatically tag popular keywords and other relevant content that is on your site, and other sites in the Jiglu network. Jiglu has discontinued this service to pursue, what appears to be, a paid service. For a long time now Jigu has gone through some service changes; they first has a popup that would come from the side of the screen, recently they had a popup that would come from the center of the screen. They also had statistics that were rather informative. The most recent version linked in other websites with similar content, that would also bring in visitors from other sites to yours. We will miss your free service Jiglu, as your website matures and a pricing structure emerges you will definitely have customers.