Robert_Charlton - 6:27 pm on Sep 2, 2010 (gmt 0)

Just for reference, should the above link break, the graphic, very official looking government certificate plastered across the site reads:

"This domain name has been seized by U.S. Immigration and Customs Enforcement, Special Agent in Charge New York Office in accordance with a seizure warrant obtained by the United States Attorney's Office for the Southern District of New York and issued pursuant to 18 U.S.C. §§ 981 and 2323 by the United States District Court for the Southern District of New York. It is unlawful to reproduce or distribute copyrighted material, such as movies, music, software or games, without authorization. Individuals who willfully reproduce or distribute copyrighted material, without authorization, risk criminal prosecution under 18 U.S.C. §§ 2319. First-time offenders convicted of criminal felony copyright laws will face up to five years in federal prison, restitution, forfeiture and a fine."

The certificate is widely quoted elsewhere on the web and even partial wording entered into the search box will pop it up in Suggest. Also for reference, here's government press release about "Operation In Our Sites" targeting online piracy here...
[ice.gov...]

With regard to the question, I've seen sites with content taken down rank for a fair amount of time afterwards, at least in situations where there's at least a place holder page online and there are residual links pointing to the page.

...keyword rich URLs

I'm assuming the question is in fact about keyword rich domains, not URLs, to make an important distinction.