Update date on websites.
Every web browser should be able to tell us when the site we're viewing was last updated, i.e. a date box under the box where you enter the url address. Its so annoying when you go to a website for the first time and can't tell whether what your reading is actually accurate to the time at which your reading.
If web browsers did have "last update" dates it would hopefully, put pressure on web site owners to keep providing regular updates as viewers would see whether it's an 'active' website and so may come back.