This will really be accelerated if people who are being censored tell people "subscribe to my rss feed" instead of "give me your email address and I'll email you". The main convenient thing about sites like reddit, facebook, etc. is that you can see a lot of different content you want to see in a convenient format while staying on one website. Lots of people don't even really know about RSS, but if there's a comeback, that will make it easier for people to follow updates on multiple personal blogs and websites.