YellowAPI functionality can be integrated in a mobile phone with the Yellow Pages iOS SDK. Resources include samples, tools, and methods that aim to visualize a working API on the iOS. This kit contains updates with ARC and iOS support, bug fixes, and listing object to match current JSON.
ResultR deserves mention as it's a meta search engine mashup built by two self-described "Web 2.0 Kids" as a high-school project. With it you can create your own search engine by choosing from 30+ sources you might want to include in your results.
Asking questions online is common practice these days, and for most queries we are able to get basic answers and insight from forums, blogs, search engines and interest groups. But what about those answers we have no way of getting? How does one access that truly valuable business information that could help to resolve a make or break issue? The Mancx API may help solve the problem.