I thought people might be interested in seeing a list of the most popular reference sites on the Web:

Top 55 Reference Websites | June 2009

As I’ve explained in earlier pieces, I periodically post “most popular” lists of websites 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.”