I have always wondered what featured blogs were, and how they were chosen.

It's obvious that quality is not criteria, nor necessarily popularity. So for a while I thought it must be some mystical formula that combines the two. However, today when Chris_Brown's, with 5 entries altogether and last activity 564 days ago, was featured I realised that this must be another one of these mystical phenomena beyond anyone’s control.

Does anyone know how it's done?