[Update: Doesn’t work. No time for debugging this evening.]
On the old Blogger (Blogger Classic), before I switched to the new Blogger Beta, I had this Greasemonkey script that gave me a tags field and that connected with my pfhyperblog del.icio.us account. The script broke in Blogger Beta and I started using Blogger’s Label feature. But that doesn’t get you to wonderful world of tags (where both del.icio.us and Technorati live).
I found a new script and installed it (thanks Singpolyma). This is the first test. It should generate tags from the Blogger label field.