Apologies to anyone who was trying to read the blog, or whose own blog was affected by it.
Either someone planted some nasty stuff on my blog or I had a link to a blog that had been affected by something nasty. So I deleted a few pages and links and that seems to have done the trick.
One page that had to be deleted was the blog post with the link to the free mini hippo pattern - so here it is again.
download now for the mini hippo