To klout or not to klout? The A.T. Rank of social media networks has all the answers

In keeping with the “More wood behind fewer arrows” mantra, I will be reducing my participation in a number of social media networks, effective immediately. Below I share my assessment of the networks I am familiar with, thus hoping to save you time and frustration.

[UPDATE] Oops! I forgot foursquare. This must be because I uninstalled it from my mobile over three months ago.

[UPDATE 2] Added LinkedIn (which I had omitted inadvertently) and foursquare to the table. HT to Bill Dollins for pointing out the LinkedIn omission.

SERVICE	A.T. RANK	WHAT'S GOING ON
Twitter	10	Where it's @
Facebook	8	Where everybody's @
Stellar	7	Useful if you tweak your stream right
LinkedIn	6	Recruiter's heaven, good for BI
Flickr	5	The faded dame of social media
Google+	3	Borrrring!
Pinterest	2	All you need to know about nailcare
Diaspora*	1	Nobody home
Pinwheel	0	Nobody home
foursquare	0	Populating 4sq's database for free
Klout	-1	FreeCreditReport.com for dunces