I'd just like to congratulate the SEO company that just emailed me this:-
Google Penguin Update 2.0 - Have you been affected?
The 'Penguin' update looks at the links that point to your website, their quality and their authority. Poor quality, 'spammy' links are being heavily penalised.
The quality of the links that are being built to a website isn't something that many people pay attention to, but this 'Penguin' update, and the first version that was released last year, can have such a significant impact on a website's rank that you might as well not be in the search engines at all.
If you're looking at your web traffic and wondering why, all of a sudden your website seems to be a quiet, "Penguin" could be the reason and if that's the case, you need to act quickly. The XXX (name removed) SEO team successfully supported a number of businesses who were affected by the first release of 'Penguin' and if you've been a victim of this release, we can help you too.
So, that's that solved then. Better give them a ring. There I was thinking Penguin was baffling the experts but, no, this company have nailed what this update is about in 24 hours.