Yahoo_Mike - 12:14 am on Mar 18, 2004 (gmt 0)

2_much asked "I would just like to know for some certainty that when my grace period runs
out that my sites will still remain in the Yahoo index if either they have been crawled naturally by Yahoo! Slurp or by me using the free add URL link."

Absolutely. If your site / URLs were already crawled, those results will remain in Yahoo! Search after April 15th (I'm assuming that's what you're referring to by Grace Period but correct me if I'm wrong).