the WWW has only been in most of the public's eye for 5-6 years now...as time passes an AMAZING amount of stuff will be there....even now we have 'The Gutenberg Project' and various universities and libraries and places like the Smithsonian doing online projects...if someone simply 'says' that X is Y on some page, it would be silly to believe them...but if scanned details are posted by reputable sources...why not?
There are VERY many details that folks have no reason to lie about, and often this is information/discussions that by their very nature libraries and universities can not easily deal with...(some guy in Texas knows how to roast an Armadillo and posts the info....and YOU can have that knowlege with a 'click'...special uses like that)
look at the musical info you can get HERE...just wait a few years...you ain't seen nothing yet!