Here’s some big news. Twitter started running in-stream ads at some point this week. It’s a big deal because it’s so insanely intrusive. I’m not a Twitter user, but I do check a few accounts here and there, and I would hate to see this kind of crap show up on a regular basis.

As you can see from the photo (which comes from Allen Stern at Center Networks), Twitter inserted an ad in between actual tweets from users, calling it a “promoted tweet.” I don’t really have a problem with these things showing up in search results, but in my own feed? How often will I have to see them? Can I opt out? Will that be a ‘Twitter Pro’ feature?

Whatever the case, it’s a shitty move by Twitter.