Here is the scenario. I have a site www.ihaveasite.com which currently focuses on internship related content only. I go about link building for a few months and get to page 1 for a certain set of keywords. I have registered my site on various directories for this particular niche (internships). Now I decide I want to also include food discounts, off campus housing and other services/niches that a student might be interested in. Here is my question --- Is this a problem? If yes, then how do I tackle this problem? Thanks.