The Yahoo! Search module lets you enter a Site restriction for the search. This is a URL, but it can be irritating to always have to enter the "http://" part of the URL. Using the String Concatenation module, this example builds the URL from two substrings: the first is "http://" coded directly into the module, the second is the rest of the URL, provided via a wired-in Text Input module.
The output from String Builder is wired into the "Site restriction" section of the Yahoo! Search module, but not directly. String Builder outputs a text value, but the Site restriction section can only accept a url value. We get around this problem by connecting String Builder to a URL Builder module, then wiring its output into Yahoo! Search.
Pipe Web Address: http://pipes.yahoo.com/pipes_team/kFSgUuNS3BGxplbvjtzu1g