i put this together, because i couldn't find a single software to do what i wanted.
(not that screensavers are even needed to save screens, with tech today.
first, download 'webgobbler': http://www.topdownloads.net/software/view.php?id=69600 (http://www.topdownloads.net/software/view.php?id=69600)
configure it with a word that you like, superhero, freedom force, etc.
webgobbler makes ugly pics, but it's not the point. find the location it saves images to, generally C:\Program Files\webGobbler\imagepool
then download an animated slideshow screensaver, such as http://www.abscreensavers.com/random-photo-screensaver (http://www.abscreensavers.com/random-photo-screensaver) and set the images at the imagepool. viola, random images from the net sequenced on your screen!
So how much goat porn do you get?
actually webgobbler has some kind of censorship filter i can't seem to get around.
BAH, then it's USELESS to me!