TONS of FREE vector silhouettes

In this site You will finde many excellent photos

common people

http://all-silhouettes.com/common-people/

business people

http://all-silhouettes.com/vector-business-people/

Airplanes top view





http://all-silhouettes.com/airplanes-top-view/

 free vector animals

http://all-silhouettes.com/free-vector-animals/

Vector family images

http://all-silhouettes.com/vector-family/
They are usefull for building courses and presentations
and more :

http://all-silhouettes.com/