tagging

so tagging is a pretty cool idea, but i dont realistically think ill use it for anything. i have bookmarks on my computer at home and i dont even use those ever, so i cant see why i would venture into setting up a tagging website or account. however, it seems like it would be something useful for people who use the internet for various things like work or organizing things or whatever it may be.im sure it could be useful for the library to share popular websites for the reference desk etc.