One of the cool things in Zend Framework is the Zend_Service layer. What it basically does is provide access to a variety of different service-based… well, services, so that you can easily integrate your application with other services. One example is, of course, Twitter. Often, to connect to various services you need to have an API key that you use to connect. The same is true for Twitter, except for public feed information. What this means is that you can search Twitter for free, with no API, easily.