Listiti goes after the new Twitter lists by generating hourly alerts to you via email (currently they only offer hourly) on keywords found in that list. The idea is a bit more complex and complete than you think. The idea of Twitter lists is not to follow the hundreds of people directly, but to follow a list of people to get information on a topic.  Well if you are not following them, some of the other alerting systems won’t work the... 

Tired of adding ego feeds to your RSS Reader? Want to keep track of when you’re mentioned on Twitter? MentionNotifier is the perfect solution! MentionNotifier will check Twitter every minute of the day for mentions of your Twitter handle. It even supports hashtag notifications. Simply enter your Twitter username (or keyword that you’d like notifications for), and enter in the email address you’d like MentionNotifier to send... 

TrafficTweet accumulates traffic updates from fellow Twitterers Use TrafficTweet to view the latest traffic accidents, lane closures, and other alerts on an interactive map. Zoom in and out around the map to get a closer look.  Read More →