Search Engine Land's Guide to SEO Chapter 3: HTML Code & Search Engine Ranking Success Factors explains HTML elements & using structured data.

In previous versions of Microsoft Outlook (the classic app), you could view the HTML code of an email by opening the email, right-clicking on it, and selecting “View source” from the context menu.

Facebook wall pages may include design elements Web developers want to learn more about. Examining the source code or HTML for the page can give developers insight into structuring their own ...