Math on the Web formats in the Wild

• Images with "TeX" code (driven by blogs, wikis, tools, etc.)
  • Alt tags (Wikipedia), comments (Planet Math), URLs (Google Docs), image comments (MathType)
• Some content is in text
  • HTML Math, TeX source (MathSciNet), ASCII Art (MathForum)
• Some is in the DOM
  • MathML (Firefox), <span>s and CSS (MathJax)