TABS: At the top of the article, you should see two tabs. The default tab is the "Article" tab, but there should also be a "Talk" tab. The Talk tab can give you fascinating insights into who is editing the article and why.
ICONS: Additionally at the top of this article there is a green plus sign and a lock icon. The green plus sign designates this article as a "Good article". These articles are "well written, contain factually accurate and verifiable information, are broad in coverage, neutral in point of view, stable, and illustrated, where possible, by relevant images with suitable copyright licenses."
The lock icon indicates that it is a semi-protected page and cannot be edited by unregistered or new users.
SUMMARY / TABLE OF CONTENTS: Wikipedia articles begin with an overview of the topic and then have a Table of Contents for areas of more in-depth coverage.
SEE ALSO: At the end of a Wikipedia article there are several useful areas. First, there's a list of related Wikipedia articles.
REFERENCES: Next, there's a list of all the sources that the writers of the Wikipedia article used. These vary widely, including news sources and scholarly journal articles. For many sources, you will be able to view full text by clicking the link.
EXTERNAL LINKS / OTHER WIKIS : Finally, there are links to other useful sites about the topic. For some entries such as this one, there are links over on the right to other Wikis such as Wikiquote, Wikimedia Commons, and Wikisource.
LAST UPDATED: Always check to see when the article was last updated!