You need to give more information. Much more. That doesn't mean your site name* (I assume that's what engine edited out). It means...

-- what, if any, is the visible evidence of hacking?
-- how did you find out you'd been hacked (direct observation or other means)?
-- does the site use an established CMS (crystal ball says yes) and if so, which one?
-- have you looked over your site files (by FTP or equivalent) including databases, if any to see what has been changed?
-- what action have you already taken, aside from the obvious one of changing all passwords (potentially more than one if you've got a database in a separate location)?
-- some-more-stuff-here that I can't think of at the moment


* There's a comprehensive WebmasterWorld rule against naming your own site. Even if there weren't, "Please visit this site which has been compromised though I don't know how" is not something you want to go around saying.

I'm with ^ on the more info.

If you're talking about an extreme change in search engine placement, that might be something else.

"Please visit this site which has been compromised though I don't know how" is not something you want to go around saying.

Kinda like "please go out with me even though my last girl/boy friend dumped me but I don't know why..."