If you're a Delphi developer I'd highly recommend subscribing Zarko Gajic's Delphi Programming RSS feed from delphi.about.com. It's a little unfortunate that the XML icon on the site doesn't link you directly to the Feed but rather a subscription page that starts with an email subscription form which confused me for a second until I realized that the RSS info was at the bottom.
Anyway, Zarko cranks out useful Delphi tips seemingly every day of the week so you're bound to see something that's useful to you. I've linked to his column in the navigation section of the right hand sidebar of my blog.
Keep up the great work Zarko!