There is a lot of conversation going on using Twitter. tons of conversations. For Twitter users, it is often the first place they turn to vent when they are unhappy about a product or service.
I have long advocated using search-driven RSS feeds to monitor what is being said about you, your company, your products, services, website, etc. Twitter searches should be a part of it.
You don't have to understand Twitter or even be a Twitter user. Use TweetScan to search twitter, click on the RSS link, then save the feed URL as part of your drifnet.