Stephen Fry, supergeek.
I recently stumbled across actor/presenter Stephen Fry's new blog. It really isn't what I would have expected. It is nearly all tech related. He owns a load of Macs, and also runs Ubuntu, Red Hat and Yellow dog linux distributions. He talks knowledgeably about the history of PDAs and smartphones, he compares the Palm OS to Pocket Windows, and writes scathing reviews of new media playing phones. As a result of the blog he's even been given a tech column in the Guardian.
His latest post is a review of a clockwork mp3 player!