eelixduppy - 9:53 pm on Nov 9, 2009 (gmt 0)

If they have a Terms of Use then you could probably find out in there someplace. Otherwise I don't see why not, although, personally I would cite the source of the data. If not at each article, it should be marked someplace where you got the data from. After all, it isn't yours. Especially might run into issues if their material in copywritten.