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Sources

• Computer Memory Upgrade. "Installing laptop memory." (Jan. 26, 2009)
  http://www.computermemoryupgrade.net/installing-laptop-memory.html
• Crucial. "How Much Memory Do You Need?" (Feb. 4, 2009).
  http://www.crucial.com/support/howmuch.aspx
  HelpWithPCs.com. "Install laptop memory." June 6, 2006. (Jan. 26, 2009)
  http://www.businessreviewonline.com/os/archives/2006/06/google_acquires.html
• Technibble.com. "How to install laptop RAM." July 11, 2006. (Jan. 26, 2009)
  http://www.technibble.com/how-to-install-laptop-ram/