No problem
And yes - but more than just a domain name, a content based site that would appeal to your target market would allow you to build an opt in list, get many pages indexed in the major search engines on your topic(s), etc.
You want to start with keyword research to find out what types of things your target market is searching for online - and how they are searching for it. For this, we use . You might want to start with this article: . Let us know if you have any questions, or want to 'brainstorm' further!