It might be a temporary glitch but I’ve noticed Big Mouth (who historically rank extremely well on some competitive terms) seem to have been dropped for a number of big money terms like search engine optimisation and affiliate marketing. I’m pretty sure they were on page 1 for these last week.
Interestingly it looks like the homepage has been completely removed from the cache which makes me think this might be a temporary problem.
There’s also something weird going on with their url’s-
Big Mouth had some problems a few years ago when they allegedly got banned for a short time for hiding text on their homepage. I can’t see any problems with the current homepage which could have caused a penalty but I bet some of the other agencies on page 1 are enjoying the extra traffic today:-)