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/20110107044736/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/utility
Utilities are software programs designed to increase a computers functionality and such programs are anti virus, back up, disk repair etc. In short anything that helps your computer to run more efficiently is classed as a utility.