Here's a large list of over 350 places to get press for your startup, including over a dozen sites that accept beta submissions. A great place to start getting some traction.
This is a wonderful resource list for any startup concerned with customer success. I like to think of customer support as another marketing channel. And the more input you can provide in ensuring your customer support is first class, the better off you'll be. Growth is so much easier when you have low rates of churn.
Offering a free service tier will significantly impact your marketing efforts, so it's vital that you figure this out ahead of time. Read this post to discover the pros and cons of each so that you can make an intelligent choice going forward.
Every marketing channel eventually becomes saturated and subject to Andrew Chen's "law of shitty clickthroughs." Here's a process you can use to identify promising new channels ahead of time, so you're not stuck wondering what's your next move.
You can get away with a passive support system for simple apps with low price points. But complex apps offered to enterprise organization are a different beast. You can't just treat your users as email addresses; you need to treat them as human beings. This extensive guide goes into great detail on how to achieve that objective.
Bots seem to be everywhere these days. So much so that I'm beginning to think they may well become a marketing channel of their own! This post is an excellent way to get up to speed on this new phenomena.