From http://awarenessribbongifts.com/awareness-ribbon-colors/
Awareness ribbon colors and their meanings
The meaning of Awareness Ribbons are based on their color or color combination. Many illnesses and causes use the awareness ribbon as their symbols of support or awareness, so there is often more than one cause for each color ribbon. Also, several causes may use an alternate color of ribbon, so the cause may appear in multiple listings.
Complete list: http://awarenessribbongifts.com/awareness-ribbon-colors/
Other sites:
http://en.wikipedia.org/wiki/List_of_awareness_ribbons
http://www.firemountaingems.com/encyclobeadia/beading_resources.asp?docid=AWARENESSRIBBONS
Here is a YouTube how to make a awareness ribbon of paracord 🙂