Findings:

• biz
• .biz
• biz dev
• bizz (user)
• Biz Markie
• Digital Dolphins in the Dance of Biz
• Bizz Buzz
• Cool Biz
• Skyer Biz (user)
• ziz (user)

If you Log in you could create a "Zizz, Bizz, Bizzz!" node. If you don't already have an account, you can register here.