You can always have the domain name for your micro niche website. In fact, there is always the chance for any micro website to gain its online popularity, but there is that proper domain name you should use for your website. And the right domain you should purchase should the main keyword you want to target.
Using the keywords you are targeting as your domain name has been proven to be a powerful keyword targeting technique when it come to search engine optimization. You can try yahoo search to see the obvious results on this keyword domain name utilization. Most of the websites appearing on yahoo serp are connected with their domain names.
A part of google also appears the results. Though the websites appearing on yahoo and google vary, the keyword domain name is an obvious factor for a website to appear in the search results. But of course, you need to look for a shorter domain name for your micro niche websites, too long domain name is no longer good and is irritating to eyes. Better yet if you browse the google keyword tool for some keyword domain suggestions.
Look for keywords (2 – 3 words combination) which does not have that height of competition. This are the ones good domain names to used for your micro niche website. You need to have at least 3 keywords for you to choose from. Research its individual competition over the giants to see the possible competition you will be competing on later.