This carefully crafted ebook is formatted for your eReader with a functional and detailed table of contents. The following is a comparison of RSS feed aggregators. Often e-mail programs and web browsers have the ability to display RSS feeds. They are listed here, too. This book has been derived from Wikipedia: it contains the entire text of the title Wikipedia article + the entire text of all the 291 related (linked) Wikipedia articles to the title article. This book does not contain illustrations. e-Pedia (an imprint of e-artnow) charges for the convenience service of formatting these e-books for your eReader. We donate a part of our net income after taxes to the Wikimedia Foundation from the sales of all books based on Wikipedia content. Wikipedia contributors, also known as Wikipedians or editors are the volunteers who write and edit Wikipedias articles, unlike readers who simply read them. Wikipedians do a wide variety of tasks, from creating new articles, fixing typos and removing vandalism to resolving disputes and perfecting content, but unite in a desire to make human knowledge available to every person on the planet.