Due to a request here, I created a small plugin that allows the user to insert <acronym> and <abbr> tags in their blog posts.
How To Use:
1. Click on the "Insert Acronym Tag" link in Live Writer
2. Put in the text to display
3. Put in *either* an acronym or an abbr title, not both.
(Oh, keep your eyes peeled here for a post soon about a Live Writer Backup Utility )