Firefox with Greasemonkey: Page Scroll is an old-fashioned but practical user script that keeps your place when reading through long pages. Whenever you scroll up or down via the scrollbar, mouse scroll wheel, or using the page keys, a pink band is placed across the top or bottom of the screen, depending on the direction in which you scroll. The bar marks the edge of the visible text and gives you a visual placeholder when moving through documents. If you frequently read through lengthy pages, Page Scroll makes sure you don't waste time scanning for the "page break" to keep your place. If you're an Opera user, the functionality of Page Scroll is built in as of version 9.6—look for an option called Scroll Marker under the advanced browsing options. In this Firefox form, you'll probably want to hit "Manage User Scripts" and change Page Scroll's included pages from every page to just the ones with longer reads. Page Scroll is a Greasemonkey script and works wherever Firefox does.