Resources
The Astronomy section of the utk.edu website offers a lot of good information on everything in the sky.
http://csep10.phys.utk.edu/astr162/lect/index.html
http://csep10.phys.utk.edu/astr162/lect/light/doppler.html
The Hyperphysics website covers many different physics topics.
http://hyperphysics.phy-astr.gsu.edu/hbase/hph.html
http://hyperphysics.phy-astr.gsu.edu/hbase/sound/dopp.html
Ron Kurtus' website School For Champions is very informative on the basics of The Doppler Effect.
http://www.school-for-champions.com/science/waves_doppler_effect.htm#.U1TNrvtI_cR
Pictures
http://thetechopensource.thetech.org/sites/default/files/imagecache/huge/4369/doppler-effect.png
http://escience.anu.edu.au/lecture/cg/Color/Image/spectrum.gif
https://lh4.googleusercontent.com/-By82jbaF4NE/AAAAAAAAAAI/AAAAAAAAAAA/y10r2uCCOEI/photo.jpg
http://fix-your-stuff.com/wp-content/uploads/2012/06/radar-gun.jpg
http://snap.lbl.gov/images/redshift.jpg
Links to Videos
https://www.youtube.com/watch?v=GstwLblPpIM
https://www.youtube.com/watch?v=a3RfULw7aAY
http://csep10.phys.utk.edu/astr162/lect/index.html
http://csep10.phys.utk.edu/astr162/lect/light/doppler.html
The Hyperphysics website covers many different physics topics.
http://hyperphysics.phy-astr.gsu.edu/hbase/hph.html
http://hyperphysics.phy-astr.gsu.edu/hbase/sound/dopp.html
Ron Kurtus' website School For Champions is very informative on the basics of The Doppler Effect.
http://www.school-for-champions.com/science/waves_doppler_effect.htm#.U1TNrvtI_cR
Pictures
http://thetechopensource.thetech.org/sites/default/files/imagecache/huge/4369/doppler-effect.png
http://escience.anu.edu.au/lecture/cg/Color/Image/spectrum.gif
https://lh4.googleusercontent.com/-By82jbaF4NE/AAAAAAAAAAI/AAAAAAAAAAA/y10r2uCCOEI/photo.jpg
http://fix-your-stuff.com/wp-content/uploads/2012/06/radar-gun.jpg
http://snap.lbl.gov/images/redshift.jpg
Links to Videos
https://www.youtube.com/watch?v=GstwLblPpIM
https://www.youtube.com/watch?v=a3RfULw7aAY