I recommend using circloscope to manage you circles.
Here is the extension: http://goo.gl/RQVFp it costs $5 for premium and is well worth it.
I was doing so circle adjustment yesterday and thought just how great a tool this is!
Here is a list of easy to follow 'recipes' you will find in the app. Very straightforward, and +Ehsan Ahmadi Gharacheh is on hand to help you out too. Hope it helps to get your circles in order.

What do you want to do?
Switch to another account...
Start: Account > (Click an Account to Switch To)
If your Account is not Shown, Login to the Account and then Click Refresh

Find and remove all (or some of) people in your circles who have not added you back...
Filters: Reset > All
Filters: Relationship > One-way (You follow)
Filters: (Use various filters to narrow down if needed)
Filters: Selected > Select All Filtered (or some of them)
Actions: Circle Operations > Remove From All Circles

Find and add all (or some of) your followers to your circles...
Filters: Reset > All
Start: Import Data > Followers
Filters: Relationship > One-way (Follows you)
Filters: (Use various filters to narrow down)
Filters: Selected > Select All Filtered (or some of them)
Actions: Circle Operations > Add to a Circle

Find and remove all (or some of) inactive people in all your circles...
Filters: Reset > All
Filters: Relationship > In Circles
Filters: Selected > Select All Filtered (or some of them)
Start: Import Data > Activities
Filters: Selected > Unselect All Filtered
Filters: Inactivity > (Set #Days)
Filters: (Use various filters to narrow down)
Filters: Selected > Select All Filtered (or some of them)
Actions: Circle Operations > Remove From All Circles

Find and add all (or some of) people who engaged (+1 / reshare / comment) in a post and it's reshares...
Filters: Reset > All
Start: Import Data > Ripples > (paste URL of the post)
Filters: (Use various filters to narrow down)
Filters: Selected > Select All Filtered (or some of them)
Actions: Circle Operations > Add to a Circle

Find and add all (or some of) people in a shared circle...
Filters: Reset > All
Start: Import Data > Shared Circle > (paste URL of the post containing shared circle)
Filters: (Use various filters to narrow down)
Filters: Selected > Select All Filtered (or some of them)
Actions: Circle Operations > Add to a Circle

Find and add all (or some of) people in a TXT/CSV/HTML file containing Google+ IDs...
Filters: Reset > All
Start: Import Data > Google+ IDs > (paste content of the file containing Google+ IDs)
Filters: (Use various filters to narrow down)
Filters: Selected > Select All Filtered (or some of them)
Actions: Circle Operations > Add to a Circle

Find and add all (or some of) people previously removed using circloscope...
Filters: Reset > All
Filters: Source > Removals
Filters: (Use various filters to narrow down)
Filters: Selected > Select All Filtered (or some of them)
Actions: Circle Operations > Add to a Circle

#circlemanagement  
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18 comments
 
Thanks +martin shervington informative and great post. Sounds like a little work but the results would be a cleaner and more personalized circle experience. That is certainly worth the 5 dollar charge. 
 
Do you circle back everyone who circles you? I don't know how I have become so popular but it is difficult to keep up.
 
+Scott Berlin it is 'each to his own' - often people will circle back to start with, and then they simply couldn't as have a limit of 5000.
 
Thanks for this +martin shervington  ... your timing is uncanny or rather spooky :-) ... just yesterday I got Circloscope and am just getting into it ... so deep gratitude Maestro!.
 
+Ehsan Ahmadi Gharacheh oh yeah, it really helps to see the step-by-step possibilities of what Circloscope can do. I mentioned on another thread earlier that the challenge with a tool like it is you have to know what tasks you want to perform before you get there, and that isn't always apparent to us. So spelling it out with the recipes is a fabulous way to understand what's possible.
 
+Stephan Hovnanian Yep. It was martin's idea to incorporate a recipe mechanism in the circloscope. Well I tried my best to do so but in the last months my "real" life has been a mess and I've not been able to commit more to the development... [Sigh]
 
We still appreciate all the hard work you put into it!
Ed Vayn
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Thank you for the recommendation +martin shervington! I was looking for a tool to simplify circle management. I've got a premium version, starting to learn capabilities of this extension. 
 
+martin shervington , just got activated for the premium membership this morning. I look forward to cleaning up and organizing my circles with this tool. Thanks for sharing, Martin. Also, thanks for putting this together, +Ehsan Ahmadi Gharacheh !
 
+martin shervington +Stephan Hovnanian +Joshua Hampton I really appreciate your supports. "Focus Focus Focus" that's what I should put in my todo list. The possibilities around here are endless. [Yesterday someone offered me a job which I've always loved to take, solely based on my Google+ postings]. Google+ is awsome because there're awsome people around here...
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