Wikisimpsons - The Simpsons Wiki
To add multimedia (images, sounds, or movies) to the Wikisimpsons, you must first upload the content to our servers. (The MediaWiki software uses the word "image" to refer to any type of non-text multimedia, as does this document.) You can follow these easy steps to add your image to the Wikisimpsons database:
There is a generous size limit of 2.0 megabytes per file, but please be reasonable!
 Embedding images from external sites
As of September 2004, it is possible to embed some images from external sites in Wikisimpsons articles. If the image's URL ends in a ".jpg", ".gif", or ".png", you may type URL into the article source (without brackets or other text surrounding it), and it will be displayed inline in the page.
However, this practice is generally considered poor etiquette and is frowned upon for most purposes. Displaying an image from another website on Wikisimpsons most likely constitutes bandwidth theft (unless the person who includes the image in Wikisimpsons also owns the server on which the image is located). In most cases, it is simpler and more convenient to just upload the image to Wikisimpsons database. Exceptions to this rule include personal photos which contributors may wish to display on their user pages.