Test HTML rich-text post snippets before publishing them

Rich snippets. are a tool that Google uses to give website-managers some control over how their sites appear in search-results (while enhancing the quality of search results, of course).

Blogger users are website-managers - the process that we follow to add meta-tags to our blogs is similar to what other web-developers, who don't have simplified software like Blogger, have to do.

Google have added a HTLM rich-text testing facility to their Webmaster-tools: this lets you see if you've got rich-snippet code (eg XX) right before hitting publish - because of course the effect on Google is one thing that you cannot test in a private pre-publication blog.