Portrait of an old woman reading, Circa 1630, Oil on Panel.
An excerpt about using wikipedia, from wikipedia
"Many visitors come to Wikipedia to acquire knowledge, others to share knowledge. At this very instant, dozens of articles are being improved, and new articles are also being created. Changes can be viewed at the Recent changes page and a random page at random articles. Over 2,000 articles have been designated by the Wikipedia community as featured articles, exemplifying the best articles in the encyclopedia. Another 7,000 articles are designated as good articles. Some information on Wikipedia is organized into lists; the best of these are designated as featured lists. Wikipedia also has portals, which organize content around topic areas; our best portals are selected as featured portals. Articles can be found using the search box on the top-right side of the screen.
Wikipedia is available in languages other than English. Wikipedia has more than two hundred languages (see other language versions), including a Simple English version, and related projects include a dictionary, quotations, books, manuals, and scientific reference sources, and a news service (see sister projects). All of these are maintained, updated, and managed by separate communities, and often include information and articles that can be hard to find through other common sources."
Another place to find out more about the things that interest you.
See cool pictures of the Day, etc.
For Wikimedia commons page, click here
For Direct Wikipedia Link