When looking to invest in domains, you have to identify keywords which are searched online. Those keywords can then be expanded into domain names.
For instance, if I want to create a portfolio of car related domains, I may look for car.com, usedcar.com, cardealer.com, buycar.com, etc...
Ever wanted to own your own registrar, but either do not know how, or cannot afford the expense to become accredited with ICANN? Some existing registrars offer what is called a reseller account. This allows you to set up your own domain registration service, without all the hassles or becoming accredited. They will also usually provide you with a customizable management interface for your customers, and sometimes, API (application programming interface) access, so you can create your own interface from scratch.
Mispelt Domain Names are growing in popularity, as domainers realize they can capitalize on people misspelling domain names when visiting websites. When typing a domain into the search bar a customer may skip letters, double letters, reverse letters or not know how to spell a certain domain name. When an address is miss-typed the user may be redirected to the correct site, an advertising site, a completely incorrect site, or no site at all.
Each and any domain name can be worth something. Also, over time, the domains will be worth more as the scarcity will increase: there are more and more people online everyday and less and less available domains.
There are probably two main strategies for you to profit from this increase in value: