That sounds impressive. However, 350 campaigns over two years averages out to just one campaign every two to three days. And if those 350 campaigns came from 300 brands, then a lot of companies aren't double-dipping into Klout Perks. Does that mean the ROI is low?

Chevy, however, has used Klout Perks three times. Its second campaign enabled 130 Klout users in five U.S. cities to take a Chevy Sonic for a ride. The results, according to : 16,000 positive social media comments and a handful of homebrew videos--yet only a single confirmed sale. Chevy's Klout Perks campaigns are highly targeted affairs, however, singling out users from specific niches and cities. Is that the right approach to a Klout Perk campaign? At least one social media director says no.

Morgan Brown for event ticket-seller ; one offered 155 users with high scores in L.A. $100 in freebies and a $10 credit to referred friends. A second campaign blasted out free, early access to the site along with $25 off of any purchase to 10,000 people in New York, regardless of their Klout score. The first campaign didn't generate much additional interest; aside from the 79 users who claimed the $100 perk, the company only gained 173 users from referrals. Additionally, the cost per user was astronomical given the size of the perk.

The second campaign and its shotgun-style approach, meanwhile, generated 40 times as many social shares as the first, creating three times as many impressions and reaching nearly five times as many people. Since the perks were modest, the cost to acquire new members was far smaller, and well within company goals.