Originally Posted by Jesus H Christ

Yes, especially if you use a paid service. I'd never hire a company to BL for me. BUT if you know what your doing Xrumer is a very effective tool. Again, it only a tool, but what you need is a true strategy and most think when the purchase the Xrumer it has it. I've been working with Xrumer daily for 4 years and after learning and improving my method I've never got a complaint or a domain blacklisted unless it was on purpose.

As mentioned to run effective campaigns you need a network set up correctly. Here's the basic, but as you advance you'll learn much better ways to link just about anywhere you want.