[Huhty]

Product Hunt: I'm sure many have said this, but it feels like a "cool kids" club, where only the elite members can submit and hold basically all the power. We eventually got "hunted" but not really on our own terms and it took some asking around to do so.

Beta List: We got featured here recently and it got us a few hundred sign-ups (before launch) but it took a while (1.5 months) to get listed. By that time we were nearly launched.

Indie Hackers: Great concept but hard to verify any numbers. We're actually thinking about starting something similar but for bloggers (not entrepreneurs in general). Courtland (the founder) used a very clever tactic in providing interesting information to his exact target market = lots of exposure on HN, Reddit, Quora, etc.