RSS of updates you make to your own site? Do you have RSS feed automatically in your site (like with some blogs, say, on wordpress etc) ? If not, you'd need first to generate it and then get the code that tickertapes onto your page. Making your own RSS feed is not difficult - I just copied and pasted and saved as .xml from click here
I haven't tried this, so can't recommend it, but on a quick google came up with click here
for ticker tape newsfeed.