Similar to a real-life bookmark, an Internet bookmark acts as a marker for a Web site. (In Internet Explorer, they're called "Favorites".) When using a Web browser, you can simply select a bookmark from the browser's Bookmarks menu to go to a certain site. This way, you don't have to go through the redundant process of typing in the Internet address each time you visit one of your favorite sites. Also, who remembers those 200-character addresses anyway?
In most browsers, to create a bookmark, you simply choose "Add Bookmark" from the Bookmarks menu when you're at a page that you'd like to bookmark. Woah, four "bookmarks" in one sentence. That's what happens with words that serve as both nouns and verb. So, now that you know how to create a bookmark, be sure to bookmark this website! =)