No, it's a pop-up from the bottom, overlaying the main text, reading:

    Netguru is a Ruby on Rails
    web development consulting
    company.

    Find out more

    Popular posts:

    Why hourly rate is better than
    fixed price

    Your Backbone will say Thank
    You

... and so on. The Twitter follow button and Tumblr button neatly overlay and obscure the navigation options at top right.

Here - screenshot: http://www.solipsys.co.uk/images/NetGuru.png

thanks. we'll look in to it!