Braille

https://en.wikipedia.org/wiki/Braille

Site
http://www.brailler.com/

Translator
http://www.brailletranslator.org/

Lib
http://libbraille.org/

Authority
http://www.brailleauthority.org/

Pharma
http://www.pharmabraille.com/

Store
http://www.braillebookstore.com/

Slides
http://www.slideshare.net/search/slideshow?searchfrom=header&q=braille

Tube
https://www.youtube.com/results?search_query=braille+blind