HTC opened up its BlinkFeed stream of info to more apps and to other Android devices last year. Now, it's getting a new form of content: ads. In a blog post, the company announced that it's testing "a limited number of promotions" to folks "in a limited number of markets." Specifically, users in the US, UK, Germany, Taiwan and China can expect to see the trial advertisements appear in the feed. Rather than a pop-up window or banner, the ads are displayed natively in a BlinkFeed post (see the example after the break). If that's sounds super annoying, don't worry, HTC will offer a way for you to opt out. But, of course, the company recommends that you leverage the promotions as a way to find new apps, goods and services.