I recall there was a site that provided a java bookmarlet that would save the web page as-is (not just a .jpg screenshot), and instantly provide you a link where you could view it. It apparently extracted the data straight from your browser so even if particular site could not be accessed unless you have an account on that particular site, it would still save its web page. It also didn't require me to install any programs, apps or anything.
It is not getpocket.com or evernote.com