Hot topics in SEO circles. Seems every SEO I come across these days is also a closet domaineer.

To those new to the terms, domaining refers to the practice of buying and trading in domains.

“As of December 2006 there are an estimated 8,000 to 10,000 individuals globally who make buying and selling domain names a part of their business. USA Today reported that many Domainers prefer to remain anonymous due to the highly competitive nature of their business“

The intersection with SEO comes in buying domains for their type-in value, then placing advertising on the landing pages. While the traffic, in many cases, might be minimal, domain names are cheap. If you have thousand domains, in some cases – hundreds of thousands of domains – all receiving a few type-ins per day, then the revenue soon adds up.

Subdomaining is adding a third-level domain onto an existing second-level domain. i.e. http://seo.v7n.com.

Here’s a great article, first of the series of two, looking into domaining and subdomaining, and explores ways in which you can profit.