How do solid-state memory and memristors work?

[Cat In A Top Hat]

So, I think I understand how regular hard drives work (essentially a very small record player that goes to where the info you need is stored on the disc when you call for it), but I don't really understand solid state memory and electronics. What's doing what? Also, I heard about something called a "memristor", recently. What do these do, and how do/could the two work together?

Thankee,
--CiaTH

[sailor]

http://electronics.howstuffworks.com/flash-memory.htm
http://en.wikipedia.org/wiki/Memristor