If the external website belongs to you, and you want to allow Wikipedia to use the text — which means allowing other people to modify it — then you must include on the external site the statement "I, (name), am the author of this article, (article name), and I release its content under the terms of the GNU Free Documentation License, Version 1.2 and later." You might want to look at Wikipedia's policies and guidelines for more details, or ask a question here.
If you think that this notice was placed here in error, you may contest the deletion by adding {{hangon}} to the top of the page that has been nominated for deletion (just below the existing speedy deletion or "db" tag), coupled with adding a note on the talk page explaining your position, but be aware that once tagged for speedy deletion, if the article meets the criterion it may be deleted without delay. Please do not remove the speedy deletion tag yourself, but don't hesitate to add information to the article that would would render it more in conformance with Wikipedia's policies and guidelines. - Realkyhick (Talk to me) 16:21, 17 June 2008 (UTC)