Summary: Searching using Google wildcard is easy with these tips, get expert computer search engine and internet website advice in this free video.
"Hi, I'm Gary for Expert Village. There's another syntax we can use in Google, which is known as a wildcard. If we know, that let's say, that we're looking for information in a particular type of site, we can specify the wildcard to search in all the entire criteria of that particular site. For example, let's say we're looking for the term "developmental psychology", and we want to search only the sites that have an .edu extension, which is basically institutions of higher learning, universities, and so forth. So, we're going to put the wildcard in as the star, which is the shift 8 key, and we're going to put ".edu", and now we're basically telling Google to look for this term "developmental psychology", but only in websites that end with .edu, so it would only be in educational websites and we look for our results, we see that all of the results came up within sites that are educational sites, in other words here we have .edu, and here we have UC, University California Davis.edu, these are all websites that deal with higher learning and that will limit our search into a specific type of information basically information that's found in the educational world as opposed to anything to do with developmental psychology."
eHow Article: How to Search Using Google Wildcard