Today is World Carfree Day 2009 – part of European mobility week.

I broke my pledge before 6am by driving my car the 25 miles from home in Holystone over Alnwick moor to Alnmouth to catch the crack of dawn train to London.

My excuse? There are no public transport options at that time of day and it would be a hellish cycle ride at any hour. And I drive a Smart car.

But whether looking to cut carbon emissions, reduce costs, or improve work life balance, more and more companies are now helping their employees to work from home.

One of Speed’s tech clients Aastra has launched a Twitter mash-up today to promote where people are working from home. Using Twitter anyone working from home is invited to tweet their location with the hash tag #wfh.

The hash-tag will automatically add users to a map of home workers.