
Buyers can list the products/services that they require. Sellers/Companies will also have an account where they can advertise their business products and services.
There are number of B2B portals available on internet from where you can perform real trade. Some of the well known B2b portals are alibaba.com, dir.yahoo.com, b2btoday.com, indiabizclub.com, justdial.com, nasscom.org and many more.
So, if you want to explore your online business, then B2B is the best place to start with. Give some good description of your services and products on these portals and in return you will get good customers and huge benefits.