Re: BitBook.biz - Bitcoin sportsbook - Instant Withdrawals - Widely Trusted
BitBook does not offer a sign up bonus. However, they are still my favorite bookie. If you really want a sign up bonus check out my thread. Although, I still recommend BitBook because I use them the most. 
Their lines unfortunately are not as good as they once were they're a few % off from the Pinny lines that Nitrogen uses and that they used to use. Cloudbet's lines are much worse though with something like 10% deviation from the rest which is quite a lot of juice...