I just discovered about a site , called Archive.today (exists also with the extension .li .is etc... this site has scrapped 5.000+ pages of my site. This site claims to archive pages at the request of users, but it has nothing to do with private copy/use since the pages are accessible to everybody, including robots! This is how i found out because some of my "good" pages are now showing at Google from this site!
And, all links are replaced by their own , which makes that, if you click on a link, instead of going to the page / site, it will archive this destination and serve this archive!
The site mentions that they are not going to remove anything. How can it be legal? And why is Google indexing it?