I've found that marketing strategies and tactics can be broken down into three main categories: Owned, Rented, and Borrowed. In other words, you have lines of communication to an audience that you either own, rent, or borrow.
Can Product Hunt bring a considerable amount of new members? Here's my plan before launch, during launch day, and the results afterward.
Dropbox pinpoints a single common use case to build interest for their Business product. It's easy to dilute your ad to appeal to a larger audience, especially when you're at Dropbox's size, which is why this ad is respectable.