While some out there are looking to refresh their RSS feed subscriptions by starting from zero, I believe you can still get the benefit of new voices by selectively adding individual feeds, without getting overloaded.
In the vein of the last three months' offerings of new blogs you're likely not reading, (March | April | May), below are five more bloggers who I think are worth taking a chance on, whose writings have caught my eye of late, and who need a bigger stage.
1) Coding Experiments (http://codingexperiments.com/)
Focus: Technology, Development, Coding, Social Media
How Many Features Can Be Cut from a Service without the Users Leaving?
RSS Feed: http://codingexperiments.com/feed
2) LiveCrunch (http://www.livecrunch.com/)
Focus: Social Networking, Plurk, Twitter
Recent Highlight: Things To Do Before WWDC 2008
RSS Feed: http://feeds.feedburner.com/livecrunch/technology
3) Broadcasting Brain (http://broadcasting-brain.com/)
Focus: Social Media, Podcasting, FriendFeed
Recent Highlight: Punching above your weight with social media
RSS Feed: http://feeds.feedburner.com/BroadcastingBrain
4) Neoformix (http://www.neoformix.com/)
Focus: Statistics, Data, Twitter
Recent Highlight: Top Twitter Users StreamGraph
RSS Feed: http://www.neoformix.com/index.xml
5) Michael Fruchter (http://michaelfruchter.com)
Focus: RSS, FriendFeed, Social Media, Toluu
Cleaning up my Google reader with the help of Toluu.
RSS Feed: http://michaelfruchter.com/blog/feed/
As mentioned last month, I'm always looking for more new bloggers and interesting voices to be added to my Google Reader feeds. You can get an early tip as to new bloggers I'm following and sharing by signing up for Toluu, following me on FriendFeed, or following my Google Reader shared links blog. If you think there are more I should check out, please leave them in the comments.