The “authority-based Twitter search” meme from a couple weeks ago led to my first ever blog comment. That led to a back and forth on Twitter and some emails back and forth. A couple days ago Salim launched Twidentify.

It’s pretty cool to see something like that grow from the spark of an idea to a live product in just a week or two. I had nothing to do with the site except for exchanging some ideas with Salim (both pre and post launch) but it’s still fun to have been there to see it develop along the way.