For years, services such as YouTube, Facebook, Blogger and Twitter have been blocked in Iran. Recently there has been the talk of unblocking two of the most used services, Blogger and YouTube in universities.
Wikipedia has a fast growing competitor now, and it’s called Everipedia. The website, as the founders call it is a "thugged-out Wikipedia" which is a crowdsourced encyclopedia and knowledge aggregator. Here’s TechRasa’s interview with two of the co-founders of Everipedia.