At least I can do this with a clear conscience and without having to put "O.T." Wikipedia has come in for some stick and while I am not defending its absolute accuracy it is fair to point out that every encyclopaedia has errors.  Each Wikipedia article depends on the knowledge of the person or persons writing or modifying it and my personal experience of reading articles where I have some knowledge myself is that they are usually very good.  I don't think most writers set out to mislead and errors are quickly corrected.  I certainly think it can be used in conjunction with other resources, and if people with specialist knowledge are prepared to put in the time and effort to improve articles, so much the better for those who read them.  There!  I feel better for getting that off my chest!  :))
Tony