Create a referral program for your website.
Create a referral program so that users can get some kind of benefits if they successfully invite their friends to join and use your website.
Dropbox was very successful with their referral program. What they did was that they gave you a signup link to either email, share to Facebook, or tweet to Twitter. If you friends signed up, you would get extra storage for your Dropbox account (Refer a friend and get a $25 coupon!)
Follow up email:
How are things? Hope you had a great Christmas.
I'm shooting you this email to let you know that we have created an infographics on startups. I think this infographics is a pretty good match to your content.
In short: We think that most people have the perception that startups achieve success overnight. However this is never the case. We created an infographics to demonstrate the timelines and average time spent building before growing for some of the most popular websites nowadays. We've used Pinterest, Twitter, and Angrybirds as our data points.
Conclusion: I think this infrographics' main objective is to encourage startups to not give up and understand that success is a series of pivoting and killing features. It's not rainbows and butterflies, and this is the kind of post I think a lot of startups will feel quite emotionally about.
Let me know if you are interested. The infographics is attached in this email. Let me know if you have any question. Email me at (email@example.com) or call me at 650-924-2477.