iRewardHealth - Motivating healthy behavior change
SocialRank - Graph search for TWTR. Filter by interests, location, etc
Physio Health - Stay healthy, get rewards.
Swagbucks - Swagbucks is a loyalty program that offers individuals rewards for engaging in various activities. Users can earn reward points for performing Internet searches, purchasing items from affiliated vendors, or completing polls.
Tep - Fitness tracker meets tamagotchi. Don't starve it!
SocialToaster - SocialToaster is an enterprise-level fan engagement platform that uses social media to amplify brand's message.