I have a standard Google (Gmail) account, and logged in. Went to Alerts, and tried creating one. Couldn't choose Feeds as an option, only choice of where to send is the Gmail account I'm logged into.
Oddly, I'd set up some Alerts in my personal Gmail account at a previous time, sent them to feeds and they work fine. I log out of my personal account, then log into the Gmail account above.
Everywhere I look online says to choose Feeds but I can't. I looked to see if it was a Google Apps account, but it definitely isn't. Could there be a conflict because I am using 2 Google accounts on my same computer. Also, I'm using IE8, not Google Chrome, as that's our corporate standard.