I'm feeling very international this Monday, so here' s a collection of things for you to read.  It's a reminder <gasp> that there are a lot of people out there who don't speak English every day (or ever) and it's responsbility of the English-dominated Web to respect that.  Even if you don't even write code to be internationalized, you have a karmic obligation to be aware of these things.

• Be aware of the differences between the ISO-8859-1 and windows-1252 character sets. [Sam Ruby]
• The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!)
• Read Tim's excellent article On the Goodness of Unicode - (I stole this glyph from Tim's site)
• Know what is allowed in an XML document as a character, versus what's appropriate as an entity.

And for folks in my world:

• Overview/Quickstart of Internationalizing ASP.NET
• Globalization & Localization Best Practices for Windows 2000 Compliant Software
• The Best Localization Directory - Dozens of great links and software
• Microsoft Global Development Portal
• Authoring HTML for Middle-Eastern Content
• Bidirectional Layout in the HTML 4.0 Spec 
• Microsoft Localization (Globalization) Toolkit - For Developing Localized ASP.NET Applications (Database Driven)

And in the vein of 'Whaaaaaa?' check out:

• The Microsoft Application Translator: "This new solution, called Microsoft Application Translator (MAT) enables applications to offer on-the-fly localization with no code change and limited investment in localization." Here's their FAQ.

Update: Here's a crucial update. ;) Don't forget that Japanese Emoticons are different than English ones!