1) Release something fast. Don't wait til it's perfect. Wait til it does one quanta of usefulness, and release.
2) Work on it tirelessly. Every day, all day. Well, take breaks, but you know what I mean. Treat your time as if it were worth $200/hr, because if you're a founder then it really is worth that, and potentially a whole lot more.
3) Communicate with your users. If they email you, you email them right away, as fast as you can. If someone writes a blog post or tweets about you, address their concerns if it's a complaint or problem. It makes a difference.
We're psyched to see how the product has been taken up by users of all backgrounds, from tech savvy to never-blogged-before. Can't wait to see what 2009 holds...
But it's certainly possible that the latter came into play, especially since we just launched group blogs (and multiple blogs per account) at the time.
A lot of people are starting to use Posterous for group family blogs, and I expect that trend to only increase when we introduce password protected blogs (coming soon)
EDIT: We also did launch group blogs and multiple blogs per account. That helped quite a bit, (fallentimes jogged my memory below) since we did see people start family group blogs while at home for the holidays. I like to think of people talking about posterous over Christmas ham and egg nog.
But seriously, it's dead simple to use, which is why I use it but haven't gotten around to trying 80% of the web startups that come through here.
I hadn't known of it before, and read (perhaps on here) about it and figured that something that could do for blogging what tripit had done to my itinerary was just about perfect for me.
I've barely used it, but I've already evangelised to others about it. It just makes things simpler.
1) They took a market which is too complex and made it dead simple...they still have ways to make it even simpler, I have already suggested them to them and they are working on it.
2) They are GREAT communicators, they don't just answer back in some standard way like "We are working on it, we will think about it." They reply really quickly.
3) They just keep on getting better with iterations.
Keep up the good work guys, you've got a fan here!
Now I look at the site and think "hey, that looks like a simple way to post stuff online". Maybe it's because they don't require signup anymore (I assume they did before).
I'd be interested to what the home page looked like before but the Way Back Machine comes up blank.