Like it or not… Twitter is now placing ads in user profiles
Twitter is bringing promoted tweets, the app’s signature ad unit, to people’s profile pages as part of a new test. That means when you visit the page of another user, you may find a targeted Twitter ad waiting for you a few tweets into that user’s stream.
The ads are separated from other tweets by a small bumper that creates a break in the stream, and a label that reads “Suggested by Twitter” — you can see an example at the bottom of this post. A company spokesperson confirmed Twitter is testing the new ad placement.