Best Encyclopedia and Dictionary Online?

I knew a wonderful Encyclopedia and Dictionary Online with spelling and great information,, and I just lost my bookmarks and can't remember the URL :(

I googled a lot and didn't find it... any help?Best Encyclopedia and Dictionary Online?
Here is an online dictionary that also offers specialized dictionaries, like foreign language dictionaries or medical dictionaries, etc. It's the best free one I've found:

http://www.yourdictionary.com/



Here is an online encyclopedia that allows you to search many different online encyclopedias all at once:

http://www.encyclopedia.com/
wikipediaBest Encyclopedia and Dictionary Online?
http://encarta.msn.com/



Is not bad as it even gives tip of the day
Encyclopedia Online:

http://en.wikipedia.org/



Dictionary Online:

http://www.ldoceonline.com/Best Encyclopedia and Dictionary Online?
Hi



I hope this one you are looking for http://www.wikipedia.org/

In all causes it is rely great one.