Probably not. Because it is so easy to copy and post information on the Internet, many websites contain copyrighted material even though they do not have permission to do so. For example, a Google search will easily turn up the famous photograph of murder victim JonBenet Ramsey in a pink sweater. But the photo agency that controlled the rights to the image objected when newspapers and websites published it in 2006 without asking permission. The objection prompted The Associated Press and other wire services to stop using the Ramsey photo.
On the other hand, some sites such as Creative Commons (creativecommons.org) allow creators to share their work under conditions more liberal than those dictated by copyright law. Such “sharing sites” can be useful if you are, for example, looking for an image of the Empire State Building that you can use without permission and without violating copyright law.
 Al Tompkins, Story Behind the Picture: Who Owns JonBenet Photos?, Poynter Online (Aug. 28, 2006), http://www.poynter.org/content/content_view.asp?id=106490.