Aside from Twitter  and Social Networking apps, another interesting set of apps available right now on the iPad App Store are search-related. I scoured through the App Store to get the most significant of these search-related iPad apps - and found 8 of them. Here are 8 search-related apps that you might want to check out. Zillow Real Estate Search This iPad app lets you view photo galleries of home's on the iPad's large screen and tap, swipe,