Industrial revolution help?

I need to make a project on one of the key machines produced like the cotton gin, spinning jenny, spinning mule, steam engine. I have to make a brochure like i was a salesman and trying to sell one of those things to some body. But i'm having a tough time choosing one, and could use a good website that has a lot of info on them. I'm allowed to use the internet but not sure what are some websites you can trust or not trust lol thanks.