Lots. 18,337,954 is the number of accounts made on Wikipedia. But only 124,925 of these accounts have been used to update something since January 1, 2013. Also, anyone account or not can edit Wikipedia.
The people run Wikipedia and and enter facts. That is why so many people like it.
Wikipedia has a good discussion on the many divergent areas that contributed to the theory of plate tectonics. Visit http://en.wikipedia.org/wiki/Tectonic_plate.
Wikipedia has about 2,000 frequent contributors and editors and many thousands of occasional contributors. Because the number of contributors is so large, it is almost certain that at least a few of them are less careful or less accurate than one might hope. This writer has contributed to Wikipedia and has been very careful with facts. Wikipedia can be counted on to have generally accurate information on most of the people described, but Wikipedia should never be your only source for key facts.
Many, many thousands of people have contributed to our knowledge of chemistry.
10 million people use Wikipedia
Many people use Wikipedia along with WikiAnswers.You can find Wikipedia online at www.wikipedia.orgwell APARENTALLY YES A BUNCH OF PEOPLE USE WIKIPEDIA WHAT ELSE WOULD THEY USE CARTOONNETWORK :P
According to Wikipedia: 1,338,612,968
211 million according to Wikipedia
according to wikipedia there r 1700 people working for it
There are 3 Contents
According to Wikipedia, the 2010 population is 399,457.
Almost half a billion people use Wikipedia every month.