Before this week, I knew about RSS Feed for websites, but I had never used them (Ahh! English teacher problem. RSS Feed. Singular or plural? Which pronoun to use?!). I subscribe to several websites, but I have the information delivered to me by email. In this day of Internet tracking, I appreciate the relative anonymity of the RSS feed, as opposed to giving a website my email address. Also, it will free up my email inbox, a never-ending struggle in my life.
As for professional development, having an organized place with all of my favorite teaching blogs in one place saves me considerable time. I will no longer be searching for the information; it will all be in one, simple location. Teachers never have enough time, and professional development is much more likely to happen when it is simpler to locate and read.