Data Feeds examples?

Hello,

I really enjoyed this video learning about the technical part of setting up a data feed. I'm not quite sure at this point the different things a data feed like this can do. I assume as the lessons unfold it will be evident.

I am wondering if anyone has links to different kinds of data feeds in the meantime. One that is doing comparisons would be nice. It would help to see one in action or different ways to use a datafeed.

I've been using a plugin call bayrss for eBay but the search features are limited in comparison to what Jeremy is showing and it may not even be the same type of animal.

Thanks,
Gary