Internet Archive Blogs: Extinction isn’t just a biological issue. In the 21st century, it’s a technical, even digital one, too. The average web page might last three months before it’s altered or deleted forever. You never know when access to the information on these web pages is going to be needed. It might be three months from now; it might be three decades. That’s how the Wayback Machine serves—making history by saving history. Now, the Wayback Machine is fighting digital extinction in brand new ways. As the Internet Archive prepares for its anniversary celebration on Oct. 23, our Wayback Team is unveiling some new features to make what some call “the memory of the web” even more detailed and responsive. Try out some of our new Wayback Machine Features, including:

• Changes: a new service enabling users to select two different versions of a given URL and compare them side by side. Differences in the text of the content are highlighted in yellow and blue…”