correlation != causation (necessarily)<p>could have been innocent reasons, an algo shift. it happens. sometimes you win the SEO lottery, sometimes they pull the rug out.<p>my own experience: roughly 3-5 years ago (don't remember off-hand) I woke up one day to learn that Google had listed me as the top search result, first page, for a particular combo of terms. I forget exactly what it was but it was something like "Java Python Flash Linux game developer" or whatever. I had learned about this from an out-of-the-blue client lead who emailed me. I was shocked when he said that's how he found me. I then went around to about a dozen different computers, different types, different geo locations in my state, both auth'ed and anonymous, and sure enough I always came up as top result, first page. It was... an awesome time to be taking on contract/consulting work, let me tell you. So many more leads coming in than before. Not enough hours in the week/month to help them, had to turn down otherwise interesting gigs.<p>Then it came to an end. Rug pulled out. Woke up one day, rankings changed, no longer on top like that.<p>Lesson (one anyway): that's a huge eyeball funnel. bazillions of people doing searches. even getting a tiny slice of it means tons of eyeballs stumbling upon you. quality is important, of course, being great at what you do, having the right leads, a good fit, avail, etc. But quantity? That has a quality of its own.