Active Rain- an odd but good name for a website that is aimed to gather real estate professionals all over the world to interact and develop their business.
This is one network I would call a real business network and real estate is a business that thrives on contacts alone apart from integrity of the real estate businessmen.
They provide an opportunity for you to create a profile that is viewed by other members of the community. You can give a link to your website or blog where you have more details of your business and about you as a person.
Whats more, you are given your blog by Active Rain itself to promote your business. Also you can join groups started by others and you can also create your own group such as Brokers group, mortgage group and so on.
ActiveRain is a Bellevue, WA based technology/media company hybrid that operates the largest and most active social network in the real estate space.