Free social commuter alert service Commuter Feed harnesses the quick and brief nature of Twitter to offer commuters in major metro areas a way of avoiding train delays, subway break-downs, and other travel information in nearly-real time. The service has one of the most extensive lists of metro areas covered of its type, although each is only as useful as the number of dedicated Twitterers on their daily routes. If you know how to follow or reply on the micro-message service, you can easily join and submit to any metro area's feed, although how you handle the surfeit of Twits in the more populous areas is up to you. For similar community-driven commuter help, check out The Clever Commute.
AU - I checked out Commuter Feed's website and while it's set up to accommodate Australian users, so far only 1 tweet has been recorded in Sydney - about the fire at Broadway Shopping Centre which happened yesterday. It's good to know that it's there if we want to use it though!