You may post these blinkies on your blog or use them in your siggie line. You don't have to "give credit," but you should know where you got them and who made them, in case someone asks about them later. You may not claim them as your own.
blinkie by Amy Teets(C)2005
from Amy: "Snag away! Get the word out!"
blinkie by kimlizzy (C) 2005
from kimlizzy: "Anyone is welcome to use it as long as they 'right click and save' and not direct link."