Remove the ads.  Your goal should be to become the standard way people search for apps.  Once you do that the business model is obvious (thanks, Google!): app developers pay for ads on the search result page.<p>First, focus on search quality (precision/recall).  Your results right now are awful. <a href="http://iphone.appsvu.com/zynga" rel="nofollow">http://iphone.appsvu.com/zynga</a><p>I'd expect a list of Zynga apps, not a list of spam websites[1].  If you hadn't posted this on HN I'd suspect your business model were adsense arbitrage.<p>Once you have a search engine that actually works I'd release free apps for all the platforms, build Android/iPhone/etc optimized websites, and plug the hell out of the service everywhere there are smartphone users.<p>The question you should be asking yourself is "Why would someone use this rather than the default way of searching for apps?"  For the iPhone that means iTunes.  What can you do to make it more useful than iTunes?  Are better results enough?  Are iTunes' results bad?<p>[1] I looked through the search results again and realize now they aren't links to spam websites.  But the fact that I thought they did is a problem.  "Mafia Wars 24 Reward Points FREE by Zynga app detail :: 148Apps :: iPhone Application and Game Revie [sic]" reads like spam.<p>I suggest you build your own database, and not link to 148apps.com.