Posted this in the 0-100 thread, but posting here as well:
I did the following for http://www.oppsdaily.com
1. Posted landing page in a slack chat (first ~10 users)
2. Posted on the indiehackers forum (+30 users)
3. Got mentioned in the indiehackers weekly newsletter (+150)
4. Posted to hacker news (+?)
5. Posted to product hunt (did not go so great)(+?)
6. Started posting weekly metrics to HN - made the frontpage (+1500-2000)