Blog owners are constantly asking how to add post specific accessories, from third party services. How do I add a Like button, for my posts? Adding many post accessories requires adding XML code, to the post template. Adding code to the post template is scary - and it can cause problems, when incorrectly done. The easiest way to add a per post accessory is to add an HTML gadget that references the post by the URL, as displayed for the page. The problem with an HTML gadget is that it simply references the page displayed. If your posts are read from the main page, or an archive page - and somebody uses a Like accessory, what happens?
What Blogger won't tell you