I have a client we've worked with over time they are seasonal and he has chose to seasonally put effort in to the site. Surprisingly it has gone pretty well over the years, however back in the summer (we take the foot off the gas then) his main keyword went from solid 1-2 rankings for about 13 miles to 20+ rankings. He has no changed addresses, I've been putting content back to the site since he became aware of the lapse, but I've never seen something fall off a cliff like that. Top ranking to nothing seemingly overnight, it might have happened over a 2 month period. Thoughts? Experiences of something similar? The keyword is listed on the homepage several times and it has an entire page dedicated to it...just odd that it was gold and then went to nothing.