I periodically post “most popular” lists of websites (and books) that I think educators might find useful. Of course, there are a number of ways to gauge “popularity.” I just view these lists as opportunities to check-out some new sites, and find it interesting to see which ones might be particularly “popular.”

You might be interested in The Best Places To Find The Most Popular (& Useful) Resources For Educators –2010.

Today, I’d like to share a new site called Rrrewind. It’s like a “Today In History” site for social media. Here’s how TechCrunch describes it:

[It] lets you see what was hot on Delicious, Digg, Hacker News, Reddit, Hulu, Yahoo Videos, YouTube, Dribbble, Flickr, Amazon and Yahoo Buzz for any day in 2010 and some in 2009. Like a snapshot in virality or a Popurls with a history focus, Rrrewind allows you to go back in time and see an archive of the most viewed items on the Internet.

It could be useful, especially as the years go by and if the site survives…