Welcome to the June 2011 18INT newsletter! Google, Microsoft and Yahoo present schema.org A couple months ago, I wrote about how Facebook's Open Graph tags improve links to your content in the news stream. Schema.org, a collaboration between Google, Microsoft and Yahoo, to does much the same thing--elaborate on the meaning of your HTML to improve user experience. Professional programmers know standards and best practices provide the best long-term strategy. Like design patterns and test-driven development, we know it makes life easier even if it's more work up front. This month, the major search engines agreed to a standard for adding more detail to HTML to aid search indexing. The technique annotates the information on the page without disturbing the display. This new tool is more detailed than Open Graph…