Best sites to learn about Flash drive hardware?

A contradicted remark in one thread about flash drive speed vs capacity, and another about hardware encryption, made me think I don't know enough about flash drives as hardware.

Can anybody recommend sites that analyze the drives themselves?

ps Also, somewhat trivially, I wondered if having a few apps each on smaller drives would run faster; and then realized what all this reminds me of: the good old VIC 20 & cart-based computing!:]

Yes, I'm having fun yet!:]