Many of you entrepreneurs and serial bloggers may already know about this little known website on the web that (more or less) tracks the history of the World and the Internet, but if you don't then you need to go and check it out. It's called Archive.org.
On that website, you can find books written by famous authors, rare photos and videos, audiobooks (many of which have been reposted on YouTube), rare and live music, NASA / UFO research - hell, all kinds of stuff.
I was just on the Internet Archive (archive.org) watching Stanley Kubrick's "2001: A Space Odyssey". And, it is in HD! How cool is that???
I also tried my hand at solving The Book That Can't Be Read a.k.a. "The Voynich Manuscript"... But, I gave up after about thirty seconds. Neither scientists nor computers can read the writing in this book, so I don't feel too bad. Maybe you can solve "the code".
Here's the link if you want to give your brain a try at it: https://archive.org/details/TheVoynichManuscript
Some areas of the site require you to sign-up for access, so it's not totally free. And, some material on that site may be copyrighted and not for free use.
But still, there's so much free info and free public domain stuff on that site, that you will be provided with media and topics to blog or vlog about for years to come.
Take a look and Enjoy.
Oh, if you like the movie "2001: A Space Odyssey", you can check it out in HD for free on Archive.org. No downloads or sign-ups, or nothin'.