For the past year or 2 I've been seeing more and more of them. However, I don't have any bookmarked, at least not yet. I found a pretty good time-waster[3] wher

For the past year or 2 I've been seeing more and more of them. However, I don't have any bookmarked, at least not yet. I found a pretty good time-waster[3] where I may end up with some. I found one here on HN[2] too....might be more. Also found a relevant question on a StackExchange[3] site. 1. http://domaintyper.com/top-websites/most-popular-websites-with-io-domain/ http://domaintyper.com/top-websites/most-popular-websites-wi... 2. https://news.ycombinator.com/item?id=4920233 https://news.ycombinator.com/item?id=4920233 3. http://answers.onstartups.com/questions/18209/whats-with-startsup-using-io-domain http://answers.onstartups.com/questions/18209/whats-with-sta...