If your text includes a reference to a website (for example, in the Further Information section of an article or a Bibliography), the URL should be text ONLY, not a live link to the site.
If you are pasting it in from another source, make sure the URL does not have hyperlink code attached to it. (If it does, it will typically be underlined and clickable in your source.) You can ensure that this code does not get added by pasting as plain text (see: Populating Text Fields from Existing Files), and you will know that the live link did not get included because the pasted text will look exactly like the rest of your text, i.e., not blue or underlined.
Web addresses may be styled with or without the http://. (e.g., http://www.nytimes.com or www.nytimes.com). Please do not include any URLs for content that is behind a paywall.