such as RSS 2.0 and Atom 2.0. These names refer to the varying subscription technologies that the Web site supports; the actual information carried by each feed is the same, so you can choose either one without worrying about the technical details. 4. After you choose from the menu, the standard Add Bookmark window appears. 5. At this point, the process is the same as for all other bookmarks, so follow the instructions I provide in the "Creating a bookmark" section earlier in this chapter. Note that what you're actually creating here is a bookmark folder, not a single bookmark, that will represent the Web site. Firefox automatically fills the folder with new bookmarks as new items become available on the Web site. Therefore, the name you supply in the Add Bookmark window is actually the name of the folder that Firefox will create. Opening a bookmark You can access bookmarks in three ways: from the Bookmarks Toolbar that sits just above the Web sites you visit, from the Bookmarks menu at the top of the window, and from the Bookmarks Sidebar that can appear on the left side of the screen. Each location offers different advantages depending on how frequently you access a given bookmark and how conservative you are with your screen's real estate: The Bookmarks Toolbar is useful for fast access to the bookmarks you visit most frequently. The bookmarks on the toolbar are always visible and are always one click away. The toolbar occupies a thin horizontal strip and can show six to ten bookmarks comfortably on a normal-sized screen. The Bookmarks menu is useful if you don't access bookmarks very often and don't want to waste screen space. If you have a lot of bookmarks, you're better off using the Bookmarks Sidebar, which scrolls more easily and has a search feature. The Bookmarks Sidebar is useful for people who have lots of bookmarks and need to access them frequently. It offers a quick-search feature and can be opened or closed quickly by pressing Ctrl+B (Windows) or +B (Macintosh). I discuss each of these tools further in the following sections. The Bookmarks Toolbar The Bookmarks Toolbar (shown in Figure 5-3) is designed for people who visit a small set of Web sites so frequently that they want these Web sites to be one click away at all times. You can put as many bookmarks onto the Bookmarks Toolbar as you can fit, and if you run out of space, Firefox automatically creates a menu at the end of the toolbar to offer access to the remaining bookmarks, as illustrated in Figure 5-4. Click a bookmark to visit it. Figure 5-3: The Bookmarks Toolbar. Figure 5-4: These bookmarks overflowed. Tip The Bookmarks Toolbar can display about 6 to 10 bookmarks at a time. You can make better use of the space by creating folders on the toolbar and putting frequently accessed bookmarks inside those folders. To create a folder on the Bookmarks Toolbar, simply right-click on empty space within it, and then choose New Folder. When the New Folder window appears, enter a name for the folder and click OK. To add bookmarks to a folder, simply drag and drop them onto the folder. Tip You can also conserve space on the Bookmarks Toolbar by giving your bookmarks shorter names. To rename a bookmark, right-click it and choose Properties. When the Properties window appears, enter a new name for the bookmark and click OK. The Bookmarks Toolbar includes two bookmarks by default: a Getting Started bookmark that introduces you to Firefox, and a live bookmark folder that