I continue to get questions about how I do the pinyin tooltips (popups) on Sinosplice. Well, let me remind you that anyone using WordPress can easily add this functionality to his blog. Just keep in mind that the tooltip content is manually added, not automatically generated.
The latest version of the plugin, 1.2 is available here:
You can also search and add the plugin through WordPress itself, and instructions on how to do that are here.
The plugin went through a rough patch recently due to some changes to WordPress’s edit screen code, making it difficult to add new tooltips to blog posts through the edit screen (although old ones continued to display fine). Now the editing screen “pinyin” button is working like a charm again.