News Courtesy of SearchEngineLand.com:
Although many small businesses do just fine with using one domain name, companies of all sizes can certainly benefit from registering multiple domain names as part of their domain name strategy. Having multiple domain names can provide sound marketing opportunities to engage your customers and to help grow your business.
Best of all, a domain name is versatile. Depending on the type of marketing campaign you’re running, you have the flexibility to tailor your approach. For example, you can utilize a domain name for something that requires very little investment of your time or money by simply pointing a specific domain name back to your existing website, or redirecting it to your business’s social media page. But if you have more time and/or a larger budget, you can create a campaign-specific landing page or even develop an entirely new website.
Ryan’s Take 
I used to have the mindset that a business needs only one domain name to maximize its potential. I started to realize that if you want to market a particular product or service, a short domain can work wonders. Take for instance the domain precise.host. I registered it for the sole purpose of redirecting to our lengthy services page. With such a short name I can put it prominently on a business card without trying to cram it in. Since it is so short, it is easier to remember and can be quickly typed in.
There is something also to be said for the newer domain extensions. I remember when .biz and other gimmicky sounding extensions started to come around. I thought that they didn’t have the same branding power as a .com or .net. These days, I’ve reversed that line of thinking. Having a plethora of extensions can really make finding a domain a lot easier. Let’s say you’re an expert in a certain field. Why not purchase a .guru domain and let everyone know just how much of an expert you are? There is a lot of potential to be had when you use a domain to market a core feature of your business.
