I have a 1 year old site widget-keyword.com, for which I've been building quality links at a steady pace of a few links per month, the whole time. Anchors have a ton of variation. Most aren't even the same, just my keyword in a linked short phrase. It was ranking 30-50 for all target keywords until G gave keyword domains a boost in the past 30 days. For 1 week it was in the top 5 for all target keywords. Then suddenly, the homepage stopped ranking at all. It has been replaced by subpages that are not relevant at all and don't even include the target keyword in their content. So instead of homepage ranking top 5.... now irrelevant subpages rank #445 for example. Should I keep building links or is this site dead?