When comes to offline world, network is one of the biggest assets for companies or for individuals to be successful. This principle applies to online world, even much more important.

Let's see few great examples below (both companies and marketing strategies need networks).

Google

Google is one of the companies in the world has the biggest network. It invites individuals and companies to join Google Adsense to make money, to invite people to join Gmail, Google Docs, to use Google API and the latest Google+ to build a huge network from around the world. It generates traffic to Google so that Google is able to make money from advertisements through those networks.

Search Engine Optimization

In order to rank high on Google, link building is very important other than keywords in your website content. You need to have a lot of quality links from high quality websites to show Google your website's authority. Link building is just an another form of online network (thanks to Google). While you are doing link building, you can get to know a lot of people from around the world, especially when you read other people's blogs. I get to know a lot of friends through link building.

Social Media Marketing

This is even more important compared to Search Engine Optimization. You need to build your network online or your own community so that when you have new products or new services, you can promote easily to your community. For example, Linkedin is a virtual Business International Network (BNI). It is much easier now to connect and build network through Linkedin compared to Business International Network (BNI). I grabbed a lot of businesses from Linkedin itself only.

Wikipedia

Wikipedia is another great platform for network. Wikipedia is a online encyclopedia that produced by people, edited by people, built links by people and shared by people. It is another huge network platform in digital world. A lot of websites, blogs, portals, etc link to Wikipedia.

If you wish you can succeed, start building network online, generate traffic to your websites and get them to spread your products or services.