I come asking for advice.

I would like to get my hands on the feeds API's in order to put together keyword lists. Here are the feeds/API's I am after:

- Google
- Overture
- MSN
- Wordtracker

I've been looking for these feeds for a while now and haven't found a definitive way of getting the data other than from wordtracker and then I needed to submit my idea to them in order to get a costing.

Submitting my idea is good and well but I don't really want to divulge what I intended to do until I have finally implemented my idea.

Needless to say I know the feeds/API's exist. Can someone point me in the right direction on how to get these feeds?

Thanks

John