Most people use RSS feeds with a RSS client (ex: Thunderbird) to avoid needing go to webpages each time, and also to avoid popups and ads. Even people using Firefox were able to block ads by using Adblock, while viewing RSS feeds. But now Google has figured out a way to place ads into RSS feeds, and have given the option to blog publishers to add these feature into their feeds. As a result most of the feeds major websites have placed Google ads in the bottom of their articles. I just hope someone makes an adblock extension for Thunderbird. Click Here to see an example of ads placed into an RSS feed from Engadget. And Click Here to see some RSS ads from Slashdot.