Need a fun website to fill some time all while learning something?

I frequent the website sporcle.com when I have a few minutes in between things or when I don't want to just sit down on the couch and watch TV.  This is a free website and it has a lot to offer! The website is advertised as a mentally stimulating diversion, which in my opinion is exactly what it is.  It's a compilation of time games that the user must choose a topic (maybe States in our country) and they have a time limit (5 minutes, sometimes less) to type in as many states as they can remember.  These games exercise "train your brain" using intelligence, memory, attention, focus, speed, and language exercises.  When you first enter the site there is a tool bar at the top breaking up the games into many categories.  One of the downsides to this site is that there are hundreds of games so if you are looking for something specific for your students or yourself you might have to look around a little bit under each category to find exactly what you are looking for.  However since there is a large variety of each topic I frequently stumble into many other games that might be useful to me or for the children I work with.  One other downside I have noticed is that if you struggle with spelling its difficult to play these games because in order to get correct answers they must be spelled correctly.  However this can also be a good thing to help children with their spelling if its a game they are interested in. Check it out! Just be careful not to get sucked in, it happens to me all the time!