Need to market your site to business prospects or looking in general for new business leads? Check out LinkedIn.com LinkedIn is a great business social networking site and currently has no restrictions on making contact with anyone that is listed in their directory. LinkedIn is the largest of the business social networking sites and the oldest, which means it contains the largest U.S. business database.
LinkedIn is free to use and can be used to hire new talent, connect with businesses or to market your business services. Recently, LinkedIn launched a new advertising component to their network that now allows businesses to market by targeting ads by titles, regions, and companies. Use LinkedIn now, before they start charging premiums for using the site.