2. • http://www.creativanewsletter.com/wp-
content/uploads/2011/10/CM1.jpg
• http://tomo.com.mx/tomo/wp-
content/uploads/2009/03/ppsa-1.png
• http://2.bp.blogspot.com/-
6tvmgUvChC4/TVRbTItHixI/AAAAAAAAEAs/dSiJitzvU_o
/s1600/1.JPG
• http://2.bp.blogspot.com/-
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aIZgc/s1600/laptop+use-+043008+002.jpg
• http://www.vivelohoy.com/wp-
content/uploads/2012/09/Millennium-Park.jpg