IOD: New Blogger Alert/Feed on MSDN

I'm going to soon be unsubscribing from a lot of blogs. The number of Microsoft blogs has gotten insane and trying to keep up with the main feed is next to impossible. I'm going to start being selective, but I'd still like to know when a new blogger comes online and maybe read their first few posts to decide if I want to subscribe to them permanently.

So my idea would be that (or any other aggregation site) have two "New Blogger Feeds".  One that is just an announcement when a new blogger comes online. The other would actually aggregate new blogger posts for 1 month.  What do you think? Would this help solve the discovery issue?