Deleting a website has a different outcome depending on these factors:
Whether or not the site is published to the Internet.
If it is live on the Internet, whether the site published to MobileMe or using the FTP (file transfer protocol) publishing capability built into iWeb.
To delete an unpublished website:
Select the name of the site you want to delete by clicking it in the sidebar on the left of the iWeb window.
Press the Delete key. The website is removed from the sidebar, and the content is permanently deleted unless you choose Edit > Undo Delete before you quit iWeb.
Note:You can’t delete an unpublished site if it’s the only site in iWeb. You can delete all but one page of the site, however.
To delete a website published to MobileMe:
You can’t delete all websites you’ve published to MobileMe; you must always leave at least a single published page. Therefore, if you have only one published site, you can delete all but one page in the site. You can remove the last page only by publishing another page to replace it.
Select the name of the site you want to delete by clicking it in the sidebar on the left of the iWeb window.
Press the Delete key. The website is removed from the sidebar, and the content is permanently deleted from iWeb unless you choose Edit > Undo Delete before you quit iWeb.
To delete the site from the Internet, do one of the following:
Delete the site files from iDisk.
If you have another website published to MobileMe, republish it. This removes the just-deleted site from the Internet.
To delete a site published using FTP:
Select the name of the site you want to delete by clicking it in the sidebar on the left of the iWeb window.
Press the Delete key.
A dialog appears asking you if you want to delete the site from the Internet.
Click Remove to delete the site from iWeb and from the Internet; click Cancel to keep the site in iWeb and online.