Its a very good question. Think of this as a sort of rotary business breakfast, without the hassle of having to get up at 6 am.
All businesses depends on making good connections, so the first thing is to fill out your profile - use the site to promote your business and sidelines - everybody needs caterers and DJs so let folk know what you can do for them, and everybody wins. In the old days business worked face to face in small local areas, but increasingly the net is taking over as a place to make sound contacts and exchange ideas far wider. And its free! Does that help?