All About Encoding and Character Sets
An understanding of character sets and Unicode http://www.joelonsoftware.com/articles/Unicode.html http://www.cl.cam.ac.uk/~mgk25/unicode.html
Right MIME types Apache http://www.ibm.com/developerworks/xml/library/x-tipapachexhtml/index.html http://www.sttmedia.com/unicode-byteordermark
Character Sets http://www.iana.org/assignments/character-sets/character-sets.xml
Unicode Charts http://www.unicode.org/charts/ http://www.ssec.wisc.edu/~tomw/java/unicode.html
ASCII Charts http://www.asciitable.com