gist.github.com has a great feature where you can embed the current version of a file in a blog via a <script/> tag. However, I can't seem to embed an older revision, or the current atomic revision in such a way, that further commits won't update what's embedded by the embed tag. Is this possible?
Embedding a specific revision of a Gist on GitHub.com via JavaScript
github
Just add .js to the end of the URL like this: https://gist.github.com/1522901/0f74d53b18060f6292db9dc4d6c1922f72aa2aaf.js