Ceeker and FindingWeb?

Are these legit services and worth trying?

[androidtech]

These two services claim to pay webmasters a fee for searches done by visitors to your web pages, if your web pages carry their search box(es) or use their XML feed.

Are they legit? (pay their commissions on time, give decent search results, etc.)

Are they worth it? (your experiences)

Also, I'm an Amazon Web Services guru. What's it like using an XML feed from a search engine as far as what you can do with it? If there any ultra-cool uses or super Search Engine companies with XML feeds, please let me know.

thx