Do a standard Google search for whatever term you're looking for (this even works with Twitter hashtags).
In the options that appear on the left side, click Updates.
You are now viewing a live, real-time search feed showing results from whatever you searched for. This results page will auto update live, no refresh needed. Here are some example searches to check out (Super Bowl, Snow, Olympics)It's really cool and I highly recommend taking advantage of it. It's actually a lot of fun to read what the world is saying about an event or show. Some upcoming events that real-time search will be useful for are the winter Olympics and the Academy Awards. Definitely check it out if you have time. :-)