Wikipedia

I looked up a number of different Wikipedia sites but didn't find any grammatical or spelling errors. I did find that some factual information was incomplete (and added some to one page) or not completely up to date. I am extremely impressed by the fact that the information about yesterday's earthquake in Baja Mexico was up to date and more detailed than the information I found on CNN. The information about past earthquakes in California and their severity was also very complete and helpful.