I'm looking for a continuous scrolling marquee (not the HTML element!) which is similar to this one, but instead scrolls vertically down.
With a lot of scrolling div's I've seen, these will reach the bottom, and then have to fully slide off the page, before the start is visible again. I need this to be continuous, so that the last logo in my div has the first logo directly beneath it.
Is there a jQuery plugin already available for this sort of animation?
There's a couple of jQuery add-ons that attempt to mimic the marquee affect. I've used this one before: http://www.vegabit.com/jquery_scroller/
It handles images / text etc so should enable you to do a vertical version of the marquee on the link you posted.
Edit: you do seem to have a fair problem with that plugin -
My alternative would be to use a simple animate loop. Never wanting to be defeated, here's one I made earlier! http://jsfiddle.net/gkTWC/48/ :)
And one for varying heights! http://jsfiddle.net/gkTWC/53/