wikipedia the free encylopedia that anybody can edit is going to complete 10 years on Jan 15th 2011. All over the world celebrations are going to be organised as part of this. login to you Facebook account and go to the below link
you can trace all the major happenings across the world to celebrate this event
Have you every thought what your life would have been without wiki. A lot of it also depends on what you search and where you search. But for me any info search the source has been wiki and then google.
You can read more about wiki here “http://en.wikipedia.org/wiki/Wikipedia”