As Twitter gets set for its IPO, you’ll be reading a lot of stories about the keys to tech company success. But the truth is, most companies don’t make it. And even having a good service or technology is no guarantee of success. For the past six months, I’ve been using a photo site and app called Everpix. It was a good service. But then, in the blink of eye, the company went bust. From Casey Newton at The Verge: Everpix was great. This is how it died.