I would like to display options chain for indexes on my site (I will add some columns etc. so there will be some added value). I can start with one index whatever cheaper to display be it RUT, S&P, ESTOXX, whatever popular. The data could be EOD or some snapshot from today or yesterday. Can someone point me to a good provider of such data that is not pricey and could be distributed? All I found for now is more than $500/month which is too much for a free service I thought I would provide to the public. Thanks