Twitter doesn’t have its own full-text search feature, but luckily there are third parties meeting this need.  Tweet Scan is the one I use – it’s a great way to find out when someone tweets about FeedDemon or TopStyle, especially since I can get the search results as an RSS feed.

FeedDemon customers can simplify the process of subscribing to Tweet Scan feeds by following these steps:

1. View this page in FeedDemon, then click here to install the Tweet Scan search definition
2. Click the Subscribe button, then type the keyword you wish to search for and click Next
3. Select "Tweet Scan (Twitter Search)" from the list of search engines and click Next
4. Select the folder you want to place this feed in, then click Next
5. Click Finish

You’re now subscribed to an RSS feed which will bring you Twitter posts containing your keyword.

Tip: Use the OR operator to search for multiple keywords (ex: "google OR microsoft").