The Pittsburgh Pirates announced the signings of three more draft picks, making it ten total who have signed so far. It appears that the top picks will be signing this weekend when the Pirates return home to PNC Park. Some of the other picks are still playing college baseball, and a few of the high school picks are still in school. There will be more signings tomorrow, and from what I heard it's a "decent size group of players".
As for the players signed today, here are their player pages for more information, followed by the draft tracker.