Better Notes - Simple notes app that ties notes together with #hashtags
Chargebee - Chargebee lets you manage subscriptions and payments at scale, handle custom recurring billing scenarios, reduce subscription churn and simplify accounting.
Whimsical - The visual workspace for teams.
Chargify - Chargify is the best online billing software for all of your Recurring Billing needs. Learn more about simplifying your Subscription Billing today.
Great F*cking Startup Advice - Strongly worded suggestions for startup founders
Recurly - Subscription billing and recurring billing management. Recurly offers enterprise-class subscription billing for thousands of companies worldwide.