I've been meaning to write-up a short summary for a while, so here goes:
How we did it:
People loved the site, but...
I'm not going to lie, with Brian Dean working on the project too now, his absolutely massive audience had a huge impact. When he announced the launch to his newsletter we got a LOT of traffic to ExplodingTopics.com. Then we had a product hunt banner on the site, so some of these people then went on to upvote us on PH.
At the same time, I wrote up the Trennd/Exploding Topics acquisition story on Medium and we got a huge amount of traffic from that when it hit #2 on Hacker News.
3K new subscribers (even though we weren't remotely optimized for emails at the time. We had a link in the footer taking you to a subscribe page and that was it.)
23rd in Product Hunt's most upvoted products of the year newsletter
People kept asking what happened to the newsletter, so we've brought that back with a revamp.
Any questions or any other details you want to know just give me a shout!