Help TechCrunch find the best startup growth marketing agencies

While billions of people are now online, thousands of companies large and small are using every channel they can to reach them. Companies like Slack, Airbnb, Pinterest, Instagram, and Dropbox have become dominant players in their market in the course of a few years, but how did they do it? As traditional marketing channels, like newspapers, TV, and PR, become less effective, how do startups go from zero users to their first one million customers?Today, we’re launching a new initiative to h