The Internet Archive discovers and captures web pages through many different web crawls.
At any given time several distinct crawls are running, some for months, and some every day or longer.
View the web archive through the Wayback Machine.
Web wide crawl with initial seedlist and crawler configuration from October 2010
TIMESTAMPS
The Wayback Machine - https://web.archive.org/web/20110106210050/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/bookmark
A Bookmark is function used very much like a tradional bookmark except it is used to bookmark Websites. These are more commonly known as 'favourites' on Internet Explorer and they enable a user to go directly to a website at the click of the mouse.