Bookmarklets are useful tools. Simply put, they’re bookmarked links you keep in your browser toolbar that perform a useful function when you click on them. There are about half a million of the things out there—far too many to fit in any bookmark toolbar! Let’s take a look at twenty of the most useful bookmarklets out there.
To “install” a bookmarklet, drag the link presented on the bookmarklet’s Web site to your bookmarks toolbar, and you’re done.