Web Archives- Retrieving Old Sites

[educatedindian]

Many of you already know about using archive.org. Found this list of other sites that may work when it's not on archive. Has anyone tried them?
If you know of others, add them.

http://commoncrawl.org/
http://www.loc.gov/webarchiving/
http://www.mementoweb.org/
http://www.digitalpreservation.gov/
http://pandora.nla.gov.au/   (For Australia)
http://arquivo.pt/?l=en  (For Portuguese sites)
http://www.webarchive.org.uk/ukwa/  (For UK sites)
http://www.webcitation.org/