Someone please make Twitter Alerts, just like Google Alerts, YOu would think that you would get Tweets about your brand via Google Alerts, but that does not se

Someone please make Twitter Alerts, just like Google Alerts, YOu would think that you would get Tweets about your brand via Google Alerts, but that does not seem to be the case. Searching Google yes, but they are not indexed for long. Also, with a Twitter Alert service it needs to be instantaneous!