Recently, one of the web 2.0 services I've been using went down. It's been down for 1 month now and I don't expect it to come back. One of my blogs on this service was ranking at position 2 for a competitive keyword. The position has held consistently all month, despite the whole platform being down and therefore unavailable for spidering by Google. This information may be useful to those who are experiencing downtime and are worried about the ranking effect. It looks like Google will maintain a page's position even after prolonged downtime.