Regarding the Search Engine promotion tool offered with the Reseller plan, I'd like to know the features of it. Specifically which Search Engines are supported.

Thanks

Alltheweb, directhit, google, hotbot, lycos, mixcat, etc.

do you yahoo?

Nope, unfortunately this submition tool don't support yahoo engine.

Yahoo is not more accepting remote submition.
You need make it by hand in their site.