I discovered this the other day - haven't had time to test drive it yet but I hear from business associates that it is worth looking at.
Tag Biz is designed to network for you saving you time and expanding your business network. Tag Biz automates the relationship networking and referral process by placing a custom business keyword tag cloud on your Facebook profile and on the Facebook profiles of your friends that are participating in your business network. You need to pick your keywords, invite your friends and then using Tag Biz you can build your own business network. Your business will automatically be listed in the Tag Biz business directory which has over 7000 listed businesses and in June 2008 received over 125,000 visits making it the largest and most active business directory on Facebook. Click here to sign up to add it to your Facebook page.
Let me know how it works for your business.