I've been subscribed to the Sun blogs for a few weeks now, but I haven't found much of a reason to recommend them. I'd hoped to find some interesting stuff, but with no editorial filter on top of the feed, it hasn't been worth it to read lots of posts looking for the good ones.
If you've found good ones there, please comment, so I can know who to read.
Oh, and I've decided I hate feeds that aggregate a bunch of blogs together. I subscribe to the Apress one as well, and it has the same issues as the Sun one, though the overall level of post is higher.