We check this website, now mp3boo.com is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is mp3boo Down Right Now? - NO! mp3boo is up!
If you have problem with access to site mp3boo, and domain mp3boo.com is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).