Verisign IDN Conversion Tool
E-mail test - IDNwiki
How right-to-left domain names work in practice | Domain Name Wire
IDN FAQ Page - EnCirca
IDN Backgrounder | Afilias
Arabic IDN - Internationalized Domain Name in Arabic - Register Arabic Domains - IDNs in Arabic Language
About Arabic Domain names
PunyCoder - the punycode converter
Verisign IDN Conversion Tool To Convert Internationalized Domain Name Into Punycode - Verisign
ChopChop.Domains Blog - ChopChop Domains Blog
That apple.com link you clicked on? Yeah, it's actually Russian • The Register
IDN World Report – Official World Report on Internationalised Domain Names
IDN homograph attack - Wikipedia