Once you sign in to Google Alerts and create an alert, you can opt for feed delivery by clicking 'Edit' next to your alert on the 'Manage Your Alerts' page and changing your 'Deliver to' selection from 'Email' to 'Feed' (click on the image to see larger).
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Two other notable improvements to Google Alerts are that we've made them faster (especially News alerts) and are now including — where possible — images in News alerts. It's a busy time in Trondheim these days, so stay tuned for more changes to Google Alerts in the coming months.
Have feedback or a feature request? Send your thoughts our way.