One of the huge pieces of prior art for my minimal blogging tool is the What's Happening? box on Twitter. It's almost like magic, esp combined with a bookmarklet. You're on a web page that you want to link to from Twitter. Click the bookmarklet. The title and a shortened link appear in the What's Happening box. Edit. Submit. Back. You're in and out real quick.
I wrote up the problem in more detail on my changes page.