If you use MSN Messenger and want to get an alert when this site is updated, use this link to register your Microsoft Passport account for greghughes.net alerts:

I've also added the icon to the right nav in the syndication section.

How did I do this? Bloggers can (for the time being at least) sign up for free alerting for their readers at MessageCast. Once signed up with a Microsoft Passport account, alert subscribers will be notified via their chosen methods (Messenger, mobile device, email) when you post a new entry to your blog. The service simply checks your RSS feeds and sends an alert when it sees new items have been added.

Note that this is a free service to the blogger, and is ad-supported on the reader's end.