Quick thought for this morning. Now that I’m using Plaxo quite a bit more frequently I’m noticing that information like “number of updated contacts” actually tracks against economic trends pretty well. I’m betting that it tracks different for different people though. Plaxo should provide some tools to filter the people you’re connected to based on stuff like that. How many people have changed their work info in the last week? Who’s got a new job title? Searches and filters like that.