Keep Your Friends Close - A free e-book about maximizing Customer Lifetime Value
FriendFilter - Auto unfriend tool for Facebook
Receiptful - Receipts that increase CLTV. Exclusive (early access to PH)
Detox for Facebook - Replace your Facebook feed with PH, HN, DN and more.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Keep My Friends - A lightweight, personal CRM to improve your relationships