Twitter has added a new widget that lets you watch a stream of real-time incoming tweets without having to hit the refresh button. The widget allows you to enter any search query, along with a title and a caption. Once you’re done, you can grab the code and embed it on any webpage. From there, it’ll continuously update in real-time with new results from the query you set. You can even do more advanced searches using parameters like “OR”. In their example widget, Twitter uses the following search string “San Francisco OR @sf OR #sf” to make a live-updating San Francisco Twitter Search widget.
More info: Twitter Search Widget