Any of the various datafeeds or Java based streaming chart services will give you that. Or are you asking for FREE realtime charts? In which case you might still be able to get free index charts from quote.com's livecharts. But that would only be the cash indices - don't believe there are any realtime index futures charts available for free.
I am looking exactly for realtime feed of cash indices not the futures and preferrably free. I am more interested in europen indices. I found marketvolume.com to fine for me for american indices. thank you keepposting